Release: 5.0.1-rc0

Pull latest string translations from Crowdin. Validated and reverted any problematic changes.

.claude/rules/pull-requests.md

@@ -40,6 +40,18 @@ PR titles appear in auto-generated changelogs and are read by users. Use **ELI5,
 
 ## PR Description Format
 
+PRs are reviewed in **GitHub's web UI**, which already shows the file tree, the diff, and the tests. Don't duplicate any
+of it. The description should answer questions the diff can't — not restate it.
+
+Only these sections, in this order:
+
+1. `## What changed`
+2. `## Technical Context`
+3. `## Review checklist` *(optional)*
+
+No `Scope`, `Files changed`, `Tests`, or `Review guidance` sub-sections — GitHub shows the files and tests, and review
+notes belong in the checklist. Fold anything critical into a Technical Context bullet.
+
 ### What changed
 
 User-friendly explanation of what this PR does. Describe the problem that was fixed or the feature that was added from the user's perspective. No internal class or method names.
@@ -53,9 +65,18 @@ Explain what's hard to extract from the diff alone. Focus on:
 - **Why** this approach was chosen (and alternatives considered/rejected)
 - **Root cause** for bug fixes (the diff shows the fix, not what caused it)
 - **Non-obvious side effects** or behavioral changes not apparent from reading the code
-- **Review guidance** — what's tricky or deserves close attention
 
-Keep it scannable with bullet points. Don't restate what's visible in the diff (file names, class renames, line-level changes).
+Format rules:
+
+- **One bullet per point.** No prose paragraphs, no nested sub-headers like `**Bug 1** / **Bug 2**` — if a PR fixes
+  multiple bugs, one bullet per bug is enough.
+- **Don't restate the diff.** File paths, class renames, test names, and line-level changes are all visible in the web
+  UI.
+
+### Review checklist (optional)
+
+For PRs with multiple non-trivial review points, add a `## Review checklist` section with `- [ ]` tasks the reviewer can
+tick off as they verify. Skip it for small PRs — a single tricky thing can stay as a Technical Context bullet.
 
 ### Example
 

.claude/settings.json

@@ -1,16 +1,17 @@
 {
   "permissions": {
-	"allow": [
-	  "mcp__ide__getDiagnostics",
-	  "WebSearch"
-	],
-	"deny": []
+    "allow": [
+      "mcp__ide__getDiagnostics",
+      "WebSearch"
+    ],
+    "deny": []
   },
   "enabledPlugins": {
-	"android-translation@claude-code-cafe": true,
-	"debugbadger@claude-code-cafe": true,
-	"jvm-tools@claude-code-cafe": true,
-	"frontend-design@claude-plugins-official": true,
-	"kotlin-lsp@claude-plugins-official": true
+    "android-translation@claude-code-cafe": true,
+    "debugbadger@claude-code-cafe": true,
+    "jvm-tools@claude-code-cafe": true,
+    "frontend-design@claude-plugins-official": true,
+    "kotlin-lsp@claude-plugins-official": true,
+    "support-investigator@claude-code-cafe": true
   }
-}
+}

.github/workflows/code-checks.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ main ]
 
+permissions:
+  contents: read
+
 jobs:
   lint-vital:
     name: Lint vitals
@@ -19,6 +22,8 @@ jobs:
     steps:
       - name: Checkout source code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+        with:
+          persist-credentials: false
       - name: Setup project and build environment
         uses: ./.github/actions/common-setup
 
@@ -37,6 +42,8 @@ jobs:
     steps:
       - name: Checkout source code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+        with:
+          persist-credentials: false
       - name: Setup project and build environment
         uses: ./.github/actions/common-setup
 
@@ -54,6 +61,8 @@ jobs:
     steps:
       - name: Checkout source code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+        with:
+          persist-credentials: false
       - name: Setup project and build environment
         uses: ./.github/actions/common-setup
 
@@ -66,5 +75,7 @@ jobs:
     steps:
       - name: Checkout source code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+        with:
+          persist-credentials: false
       - name: Validate metadata lengths
         run: bash fastlane/check_metadata_length.sh

.github/workflows/gradle-wrapper-validation.yml

@@ -8,10 +8,15 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   validation:
     name: "Validation"
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
+        with:
+          persist-credentials: false
       - uses: gradle/actions/wrapper-validation@0723195856401067f7a2779048b490ace7a47d7c #v5.0.2

.github/workflows/release-tag.yml

@@ -11,6 +11,9 @@ on:
         type: boolean
         default: true
 
+permissions:
+  contents: read
+
 jobs:
   release-github:
     name: Create GitHub release
@@ -33,6 +36,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup project and build environment
         uses: ./.github/actions/common-setup
@@ -108,6 +112,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup project and build environment
         uses: ./.github/actions/common-setup

.gitignore

@@ -16,4 +16,5 @@
 /fastlane/README.md
 .kotlin
 # Screenshot test reference images (ephemeral, regenerated on demand)
-app/src/screenshotTest*/reference/
+app/src/screenshotTest*/reference/
+.codex

README.md

@@ -1,4 +1,4 @@
-<img src="https://github.com/d4rken-org/capod/raw/main/.assets/banner.png" width="400">
+<img src="https://github.com/d4rken-org/capod/raw/main/.assets/banner.png" width="400" alt="CAPod banner">
 
 # Companion App for AirPods (CAPod)
 
@@ -87,6 +87,7 @@ Currently supported models:
   check it out.
 * [@kavishdevar](https://github.com/kavishdevar/librepods) and
   his [LibrePods project](https://github.com/kavishdevar/librepods) for sharing a lot of cool stuff.
+* [Crowdin](https://crowdin.com/) for supporting open-source projects.
 
 ## License
 

VERSION

@@ -1 +1 @@
-4.0.2-rc1 40002010
+5.0.1-rc0 50001000

app/src/debug/AndroidManifest.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application>
+        <activity
+            android:name="eu.darken.capod.debug.l2cap.L2capPocActivity"
+            android:exported="true"
+            android:label="L2CAP PoC">
+            <intent-filter>
+                <action android:name="eu.darken.capod.L2CAP_POC" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/debug/java/eu/darken/capod/debug/l2cap/L2capPocActivity.kt

@@ -0,0 +1,256 @@
+package eu.darken.capod.debug.l2cap
+
+import eu.darken.capod.common.bluetooth.l2cap.L2capSocketFactory
+import android.Manifest
+import android.annotation.SuppressLint
+import android.bluetooth.BluetoothAdapter
+import android.bluetooth.BluetoothDevice
+import android.bluetooth.BluetoothManager
+import android.bluetooth.BluetoothSocket
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material3.Button
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import java.io.InputStream
+import java.io.OutputStream
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+class L2capPocActivity : ComponentActivity() {
+
+    companion object {
+        private const val TAG = "L2capPoc"
+        private const val PSM = 0x1001
+
+        private val HANDSHAKE = byteArrayOf(
+            0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x02, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+        )
+        private val ANC_OFF = byteArrayOf(
+            0x04, 0x00, 0x04, 0x00, 0x09, 0x00, 0x0d, 0x01, 0x00, 0x00, 0x00
+        )
+        private val ANC_ON = byteArrayOf(
+            0x04, 0x00, 0x04, 0x00, 0x09, 0x00, 0x0d, 0x02, 0x00, 0x00, 0x00
+        )
+        private val TRANSPARENCY = byteArrayOf(
+            0x04, 0x00, 0x04, 0x00, 0x09, 0x00, 0x0d, 0x03, 0x00, 0x00, 0x00
+        )
+    }
+
+    private val permissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { granted ->
+        if (granted) Log.d(TAG, "BLUETOOTH_CONNECT granted")
+        else Log.w(TAG, "BLUETOOTH_CONNECT denied")
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S &&
+            checkSelfPermission(Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED
+        ) {
+            permissionLauncher.launch(Manifest.permission.BLUETOOTH_CONNECT)
+        }
+
+        setContent {
+            MaterialTheme {
+                Surface(modifier = Modifier.fillMaxSize()) {
+                    PocScreen()
+                }
+            }
+        }
+    }
+
+    @OptIn(ExperimentalLayoutApi::class)
+    @SuppressLint("MissingPermission")
+    @Composable
+    private fun PocScreen() {
+        val btManager = remember { getSystemService(BluetoothManager::class.java) }
+        val adapter: BluetoothAdapter? = remember { btManager?.adapter }
+        val logEntries = remember { mutableStateListOf<String>() }
+        val logListState = rememberLazyListState()
+        var selectedDevice by remember { mutableStateOf<BluetoothDevice?>(null) }
+        var socket by remember { mutableStateOf<BluetoothSocket?>(null) }
+        var outputStream by remember { mutableStateOf<OutputStream?>(null) }
+        var connected by remember { mutableStateOf(false) }
+        val scope = rememberCoroutineScope()
+        var readerJob by remember { mutableStateOf<Job?>(null) }
+
+        val timeFmt = remember { SimpleDateFormat("HH:mm:ss.SSS", Locale.US) }
+
+        fun log(msg: String) {
+            val line = "${timeFmt.format(Date())} $msg"
+            Log.d(TAG, msg)
+            logEntries.add(line)
+        }
+
+        fun ByteArray.hex(): String = joinToString(" ") { "%02X".format(it) }
+
+        LaunchedEffect(logEntries.size) {
+            if (logEntries.isNotEmpty()) logListState.animateScrollToItem(logEntries.size - 1)
+        }
+
+        fun startReader(input: InputStream) {
+            readerJob = scope.launch(Dispatchers.IO) {
+                val buf = ByteArray(1024)
+                try {
+                    while (isActive) {
+                        val len = input.read(buf)
+                        if (len == -1) {
+                            launch(Dispatchers.Main) { log("<<< Stream closed by remote") }
+                            break
+                        }
+                        val data = buf.copyOf(len)
+                        launch(Dispatchers.Main) { log("<<< [${data.size}] ${data.hex()}") }
+                    }
+                } catch (e: Exception) {
+                    launch(Dispatchers.Main) { log("<<< Read error: ${e.message}") }
+                }
+            }
+        }
+
+        Column(modifier = Modifier.fillMaxSize().padding(16.dp)) {
+            Text("L2CAP PoC — AAP Connection", style = MaterialTheme.typography.titleMedium)
+
+            if (adapter == null) {
+                Text("No Bluetooth adapter found", color = MaterialTheme.colorScheme.error)
+                return@Column
+            }
+
+            // Bonded devices
+            if (!connected) {
+                Text("Bonded Devices:", style = MaterialTheme.typography.labelLarge, modifier = Modifier.padding(top = 8.dp))
+                val bonded = remember(adapter) {
+                    try { adapter.bondedDevices?.toList() ?: emptyList() }
+                    catch (_: SecurityException) { emptyList() }
+                }
+                bonded.forEach { device ->
+                    val name = try { device.name ?: "Unknown" } catch (_: SecurityException) { "Unknown" }
+                    val isSelected = selectedDevice == device
+                    Card(
+                        modifier = Modifier.fillMaxWidth().padding(vertical = 2.dp).clickable { selectedDevice = device },
+                        colors = if (isSelected) CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.primaryContainer) else CardDefaults.cardColors()
+                    ) {
+                        Row(modifier = Modifier.padding(8.dp)) {
+                            Text("$name  ${device.address}", style = MaterialTheme.typography.bodySmall)
+                        }
+                    }
+                }
+            }
+
+            // Connection controls
+            FlowRow(modifier = Modifier.padding(vertical = 8.dp), horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                Button(
+                    onClick = {
+                        val dev = selectedDevice ?: return@Button
+                        log("=== Connecting to ${dev.address} ===")
+                        scope.launch(Dispatchers.IO) {
+                            try {
+                                val sock = L2capSocketFactory().createSocket(dev, PSM)
+                                withContext(Dispatchers.Main) { log("Socket created, connecting...") }
+                                sock.connect()
+                                withContext(Dispatchers.Main) {
+                                    log("Connected!")
+                                    socket = sock
+                                    outputStream = sock.outputStream
+                                    connected = true
+                                }
+                                startReader(sock.inputStream)
+
+                                withContext(Dispatchers.Main) { log(">>> Handshake [${HANDSHAKE.size}] ${HANDSHAKE.hex()}") }
+                                sock.outputStream.write(HANDSHAKE)
+                                sock.outputStream.flush()
+                            } catch (e: Exception) {
+                                withContext(Dispatchers.Main) { log("Failed: ${e::class.simpleName}: ${e.message}") }
+                            }
+                        }
+                    },
+                    enabled = selectedDevice != null && !connected
+                ) { Text("Connect") }
+
+                Button(
+                    onClick = {
+                        log("=== Disconnecting ===")
+                        readerJob?.cancel()
+                        readerJob = null
+                        try { socket?.close() } catch (_: Exception) {}
+                        socket = null
+                        outputStream = null
+                        connected = false
+                    },
+                    enabled = connected
+                ) { Text("Disconnect") }
+            }
+
+            // AAP command buttons
+            if (connected) {
+                FlowRow(modifier = Modifier.padding(vertical = 4.dp), horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    fun sendCommand(name: String, cmd: ByteArray) {
+                        scope.launch(Dispatchers.IO) {
+                            try {
+                                withContext(Dispatchers.Main) { log(">>> $name [${cmd.size}] ${cmd.hex()}") }
+                                outputStream?.write(cmd)
+                                outputStream?.flush()
+                            } catch (e: Exception) {
+                                withContext(Dispatchers.Main) { log(">>> Send error: ${e.message}") }
+                            }
+                        }
+                    }
+                    Button(onClick = { sendCommand("ANC Off", ANC_OFF) }) { Text("ANC Off") }
+                    Button(onClick = { sendCommand("ANC On", ANC_ON) }) { Text("ANC On") }
+                    Button(onClick = { sendCommand("Transparency", TRANSPARENCY) }) { Text("Transparency") }
+                    Button(onClick = { sendCommand("Handshake", HANDSHAKE) }) { Text("Handshake") }
+                }
+            }
+
+            HorizontalDivider(modifier = Modifier.padding(vertical = 4.dp))
+
+            LazyColumn(state = logListState, modifier = Modifier.weight(1f)) {
+                items(logEntries) { entry ->
+                    Text(text = entry, fontFamily = FontFamily.Monospace, fontSize = 11.sp, lineHeight = 14.sp)
+                }
+            }
+        }
+    }
+}

app/src/debug/java/eu/darken/capod/screenshots/ScreenshotContent.kt

@@ -11,17 +11,10 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.graphics.toArgb
-import eu.darken.capod.R
 import eu.darken.capod.common.compose.PreviewWrapper
-import eu.darken.capod.main.ui.widget.ComposeWidgetPreview
-import eu.darken.capod.main.ui.widget.WidgetRenderState
-import eu.darken.capod.reaction.ui.popup.PopUpContent as PopUpCard
-import eu.darken.capod.main.ui.widget.WidgetConfigurationScreen
-import eu.darken.capod.main.ui.widget.WidgetConfigurationViewModel
-import eu.darken.capod.main.ui.widget.WidgetTheme
 import eu.darken.capod.common.compose.preview.MOCK_NOW
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
 import eu.darken.capod.common.theming.CapodTheme
@@ -29,7 +22,12 @@ import eu.darken.capod.main.ui.overview.OverviewScreen
 import eu.darken.capod.main.ui.overview.OverviewViewModel
 import eu.darken.capod.main.ui.settings.SettingsScreen
 import eu.darken.capod.main.ui.settings.SettingsViewModel
-import eu.darken.capod.pods.core.PodDevice
+import eu.darken.capod.main.ui.widget.ComposeWidgetPreview
+import eu.darken.capod.main.ui.widget.WidgetConfigurationScreen
+import eu.darken.capod.main.ui.widget.WidgetConfigurationViewModel
+import eu.darken.capod.main.ui.widget.WidgetRenderState
+import eu.darken.capod.main.ui.widget.WidgetTheme
+import eu.darken.capod.pods.core.apple.PodModel
 import eu.darken.capod.profiles.ui.DeviceManagerScreen
 import eu.darken.capod.profiles.ui.DeviceManagerViewModel
 import eu.darken.capod.profiles.ui.creation.DeviceProfileCreationScreen
@@ -37,6 +35,7 @@ import eu.darken.capod.profiles.ui.creation.DeviceProfileCreationViewModel
 import eu.darken.capod.reaction.core.autoconnect.AutoConnectCondition
 import eu.darken.capod.reaction.ui.ReactionSettingsScreen
 import eu.darken.capod.reaction.ui.ReactionSettingsViewModel
+import eu.darken.capod.reaction.ui.popup.PopUpContent as PopUpCard
 
 internal const val DS = "spec:width=1080px,height=2400px,dpi=428"
 
@@ -47,15 +46,15 @@ internal fun DashboardContent() = PreviewWrapper {
             now = MOCK_NOW,
             permissions = emptySet(),
             devices = listOf(
-                MockPodDataProvider.airPodsProMixed(),
-                MockPodDataProvider.airPodsMax(),
-                MockPodDataProvider.unknownDevice(),
+                MockPodDataProvider.dualPodMonitoredMixed(),
+                MockPodDataProvider.singlePodMonitored(),
+                MockPodDataProvider.unknownMonitored(),
             ),
             isDebugMode = false,
             isBluetoothEnabled = true,
             profiles = listOf(
-                MockPodDataProvider.profile("My AirPods Pro", PodDevice.Model.AIRPODS_PRO2),
-                MockPodDataProvider.profile("AirPods Max", PodDevice.Model.AIRPODS_MAX),
+                MockPodDataProvider.profile("My AirPods Pro", PodModel.AIRPODS_PRO2),
+                MockPodDataProvider.profile("AirPods Max", PodModel.AIRPODS_MAX),
             ),
             upgradeInfo = MockPodDataProvider.gplayInfo(isPro = true),
             showUnmatchedDevices = false,
@@ -73,9 +72,9 @@ internal fun DeviceProfilesContent() = PreviewWrapper {
     DeviceManagerScreen(
         state = DeviceManagerViewModel.State(
             profiles = listOf(
-                MockPodDataProvider.profile("Work AirPods", PodDevice.Model.AIRPODS_PRO2),
-                MockPodDataProvider.profile("AirPods Max", PodDevice.Model.AIRPODS_MAX),
-                MockPodDataProvider.profile("Gym Beats", PodDevice.Model.POWERBEATS_PRO),
+                MockPodDataProvider.profile("Work AirPods", PodModel.AIRPODS_PRO2),
+                MockPodDataProvider.profile("AirPods Max", PodModel.AIRPODS_MAX),
+                MockPodDataProvider.profile("Gym Beats", PodModel.POWERBEATS_PRO),
             ),
         ),
         onBack = {},
@@ -92,11 +91,11 @@ internal fun AddProfileContent() = PreviewWrapper {
             name = "",
             nameError = null,
             selectedModel = null,
-            availableModels = PodDevice.Model.entries.filter { it != PodDevice.Model.UNKNOWN },
+            availableModels = PodModel.entries.filter { it != PodModel.UNKNOWN },
             identityKey = null,
             encryptionKey = null,
             selectedDevice = null,
-            bondedDevices = emptyList(),
+            bondedDeviceItems = emptyList(),
             minimumSignalQuality = 0.15f,
             canSave = false,
         ),
@@ -158,8 +157,8 @@ internal fun ReactionSettingsContent() = PreviewWrapper {
 @Composable
 internal fun WidgetConfigurationContent() = PreviewWrapper {
     val profiles = listOf(
-        MockPodDataProvider.profile("My AirPods Pro", PodDevice.Model.AIRPODS_PRO2),
-        MockPodDataProvider.profile("AirPods Max", PodDevice.Model.AIRPODS_MAX),
+        MockPodDataProvider.profile("My AirPods Pro", PodModel.AIRPODS_PRO2),
+        MockPodDataProvider.profile("AirPods Max", PodModel.AIRPODS_MAX),
     )
     WidgetConfigurationScreen(
         state = WidgetConfigurationViewModel.State(
@@ -201,7 +200,7 @@ internal fun CasePopUpContent() {
             contentAlignment = Alignment.Center,
         ) {
             PopUpCard(
-                device = MockPodDataProvider.airPodsProMixed(),
+                device = MockPodDataProvider.dualPodMonitoredMixed(),
                 onClose = {},
                 modifier = Modifier.padding(horizontal = 32.dp),
             )

app/src/foss/java/eu/darken/capod/upgrade/ui/UpgradeScreen.kt

@@ -5,14 +5,11 @@ import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.systemBars
 import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
@@ -24,6 +21,8 @@ import androidx.compose.material.icons.twotone.BluetoothConnected
 import androidx.compose.material.icons.twotone.Favorite
 import androidx.compose.material.icons.twotone.Palette
 import androidx.compose.material.icons.twotone.PlayCircle
+import androidx.compose.material.icons.twotone.Headphones
+import androidx.compose.material.icons.twotone.Tune
 import androidx.compose.material.icons.twotone.Widgets
 import androidx.compose.material3.Button
 import androidx.compose.material3.Card
@@ -36,6 +35,7 @@ import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
@@ -50,6 +50,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.buildAnnotatedString
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.withStyle
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
@@ -111,24 +112,35 @@ fun UpgradeScreen(
         Benefit(Icons.TwoTone.BluetoothConnected, R.string.upgrade_benefit_autoconnect),
         Benefit(Icons.AutoMirrored.TwoTone.Message, R.string.upgrade_benefit_popups),
         Benefit(Icons.TwoTone.Widgets, R.string.upgrade_benefit_widgets),
+        Benefit(Icons.TwoTone.Tune, R.string.upgrade_benefit_device_settings),
+        Benefit(Icons.TwoTone.Headphones, R.string.upgrade_benefit_device_controls),
         Benefit(Icons.TwoTone.Favorite, R.string.upgrade_benefit_support),
     )
 
     Scaffold(
         snackbarHost = { SnackbarHost(snackbarHostState) },
         containerColor = MaterialTheme.colorScheme.surface,
+        topBar = {
+            TopAppBar(
+                title = {},
+                navigationIcon = {
+                    IconButton(onClick = onNavigateUp) {
+                        Icon(
+                            imageVector = Icons.AutoMirrored.TwoTone.ArrowBack,
+                            contentDescription = null,
+                        )
+                    }
+                },
+            )
+        },
     ) { paddingValues ->
-    Box(modifier = Modifier
-        .windowInsetsPadding(WindowInsets.systemBars)
-        .padding(paddingValues)
-    ) {
         Column(
             modifier = Modifier
                 .verticalScroll(rememberScrollState())
+                .padding(paddingValues)
                 .padding(horizontal = 24.dp),
             horizontalAlignment = Alignment.CenterHorizontally,
         ) {
-            Spacer(modifier = Modifier.height(16.dp))
 
             Box(contentAlignment = Alignment.Center) {
                 Surface(
@@ -208,6 +220,14 @@ fun UpgradeScreen(
                 }
             }
 
+            Text(
+                text = stringResource(R.string.upgrade_benefit_disclaimer),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+                modifier = Modifier.padding(top = 8.dp),
+            )
+
             Spacer(modifier = Modifier.height(16.dp))
 
             Button(
@@ -238,18 +258,6 @@ fun UpgradeScreen(
 
             Spacer(modifier = Modifier.height(24.dp))
         }
-
-        IconButton(
-            onClick = onNavigateUp,
-            modifier = Modifier.padding(4.dp),
-        ) {
-            Icon(
-                imageVector = Icons.AutoMirrored.TwoTone.ArrowBack,
-                contentDescription = null,
-                tint = MaterialTheme.colorScheme.onSurface,
-            )
-        }
-    }
     }
 }
 

app/src/foss/res/values-ru/strings.xml

@@ -3,8 +3,8 @@
     <string name="foss_upgrade_donate_label">Пожертвовать</string>
     <string name="foss_upgrade_alreadydonated_label">Я уже пожертвовал</string>
     <string name="foss_upgrade_no_money_label">Я потратил все свои деньги на AirPods</string>
-    <string name="upgrade_foss_preamble">CAPod FOSS бесплатный и с открытым исходным кодом. Если вам полезно приложение, рассмотрите возможность спонсировать разработку, чтобы помочь проекту продолжать развиваться.</string>
+    <string name="upgrade_foss_preamble">CAPod FOSS бесплатный и с открытым исходным кодом. Если Вам полезно приложение, рассмотрите возможность спонсировать разработку, чтобы помочь проекту продолжать развиваться.</string>
     <string name="upgrade_foss_sponsor_action">Поддержать разработку</string>
     <string name="upgrade_foss_sponsor_subtitle">Без рекламы. Без слежки. Без привязки к Google Play.</string>
-    <string name="upgrade_foss_sponsor_returned_early">Вернулись уже? Ваша поддержка помогает CAPod жить.</string>
+    <string name="upgrade_foss_sponsor_returned_early">Вернулись? Ваша поддержка помогает CAPod жить.</string>
 </resources>

app/src/gplay/java/eu/darken/capod/upgrade/ui/UpgradeScreen.kt

@@ -7,14 +7,11 @@ import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.systemBars
 import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
@@ -27,6 +24,8 @@ import androidx.compose.material.icons.twotone.Favorite
 import androidx.compose.material.icons.twotone.Palette
 import androidx.compose.material.icons.twotone.PlayCircle
 import androidx.compose.material.icons.twotone.Stars
+import androidx.compose.material.icons.twotone.Headphones
+import androidx.compose.material.icons.twotone.Tune
 import androidx.compose.material.icons.twotone.Widgets
 import androidx.compose.material3.Button
 import androidx.compose.material3.Card
@@ -37,8 +36,10 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
@@ -125,17 +126,33 @@ fun UpgradeScreen(
         Benefit(Icons.TwoTone.BluetoothConnected, R.string.upgrade_benefit_autoconnect),
         Benefit(Icons.AutoMirrored.TwoTone.Message, R.string.upgrade_benefit_popups),
         Benefit(Icons.TwoTone.Widgets, R.string.upgrade_benefit_widgets),
+        Benefit(Icons.TwoTone.Tune, R.string.upgrade_benefit_device_settings),
+        Benefit(Icons.TwoTone.Headphones, R.string.upgrade_benefit_device_controls),
         Benefit(Icons.TwoTone.Favorite, R.string.upgrade_benefit_support),
     )
 
-    Box(modifier = Modifier.windowInsetsPadding(WindowInsets.systemBars)) {
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = {},
+                navigationIcon = {
+                    IconButton(onClick = onNavigateUp) {
+                        Icon(
+                            imageVector = Icons.AutoMirrored.TwoTone.ArrowBack,
+                            contentDescription = null,
+                        )
+                    }
+                },
+            )
+        },
+    ) { paddingValues ->
         Column(
             modifier = Modifier
                 .verticalScroll(rememberScrollState())
+                .padding(paddingValues)
                 .padding(horizontal = 24.dp),
             horizontalAlignment = Alignment.CenterHorizontally,
         ) {
-            Spacer(modifier = Modifier.height(16.dp))
 
             Box(contentAlignment = Alignment.Center) {
                 Surface(
@@ -215,6 +232,14 @@ fun UpgradeScreen(
                 }
             }
 
+            Text(
+                text = stringResource(R.string.upgrade_benefit_disclaimer),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+                modifier = Modifier.padding(top = 8.dp),
+            )
+
             Spacer(modifier = Modifier.height(24.dp))
 
             if (state == null) {
@@ -231,17 +256,6 @@ fun UpgradeScreen(
 
             Spacer(modifier = Modifier.height(24.dp))
         }
-
-        IconButton(
-            onClick = onNavigateUp,
-            modifier = Modifier.padding(4.dp),
-        ) {
-            Icon(
-                imageVector = Icons.AutoMirrored.TwoTone.ArrowBack,
-                contentDescription = null,
-                tint = MaterialTheme.colorScheme.onSurface,
-            )
-        }
     }
 }
 

app/src/main/java/eu/darken/capod/App.kt

@@ -12,7 +12,8 @@ import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.flow.throttleLatest
 import eu.darken.capod.common.upgrade.UpgradeRepo
 import eu.darken.capod.main.ui.widget.WidgetManager
-import eu.darken.capod.monitor.core.PodMonitor
+import eu.darken.capod.monitor.core.DeviceMonitor
+
 import eu.darken.capod.monitor.core.devicesWithProfiles
 
 import kotlinx.coroutines.CoroutineScope
@@ -27,7 +28,7 @@ import javax.inject.Inject
 open class App : Application() {
 
     @Inject lateinit var autoReporting: AutomaticBugReporter
-    @Inject lateinit var podMonitor: PodMonitor
+    @Inject lateinit var deviceMonitor: DeviceMonitor
     @Inject lateinit var widgetManager: WidgetManager
     @Inject lateinit var upgradeRepo: UpgradeRepo
     @Inject @AppScope lateinit var appScope: CoroutineScope
@@ -42,7 +43,7 @@ open class App : Application() {
 
         appScope.launch { widgetManager.refreshWidgets() }
 
-        podMonitor.devicesWithProfiles()
+        deviceMonitor.devicesWithProfiles()
             .distinctUntilChanged()
             .throttleLatest(1000)
             .onEach {

app/src/main/java/eu/darken/capod/common/MediaControl.kt

@@ -45,7 +45,7 @@ class MediaControl @Inject constructor(
         }
     }
 
-    private suspend fun sendKey(keyCode: Int) {
+    internal suspend fun sendKey(keyCode: Int) {
         log(TAG) { "Sending up+down KeyEvent: $keyCode" }
         val eventTime = SystemClock.uptimeMillis()
         audioManager.dispatchMediaKeyEvent(KeyEvent(eventTime, eventTime, KeyEvent.ACTION_DOWN, keyCode, 0))
@@ -53,6 +53,24 @@ class MediaControl @Inject constructor(
         audioManager.dispatchMediaKeyEvent(KeyEvent(eventTime + 200, eventTime + 200, KeyEvent.ACTION_UP, keyCode, 0))
     }
 
+    fun adjustVolumeUp() {
+        log(TAG, INFO) { "adjustVolumeUp()" }
+        audioManager.adjustSuggestedStreamVolume(
+            AudioManager.ADJUST_RAISE,
+            AudioManager.USE_DEFAULT_STREAM_TYPE,
+            AudioManager.FLAG_SHOW_UI,
+        )
+    }
+
+    fun adjustVolumeDown() {
+        log(TAG, INFO) { "adjustVolumeDown()" }
+        audioManager.adjustSuggestedStreamVolume(
+            AudioManager.ADJUST_LOWER,
+            AudioManager.USE_DEFAULT_STREAM_TYPE,
+            AudioManager.FLAG_SHOW_UI,
+        )
+    }
+
     companion object {
         private val TAG = logTag("MediaControl")
     }

app/src/main/java/eu/darken/capod/common/bluetooth/BluetoothManager2.kt

@@ -22,7 +22,7 @@ import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.flow.setupCommonEventHandlers
-import eu.darken.capod.pods.core.apple.protocol.ContinuityProtocol
+import eu.darken.capod.pods.core.apple.ble.protocol.ContinuityProtocol
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.delay
@@ -304,6 +304,40 @@ class BluetoothManager2 @Inject constructor(
         emit(wrappedDevices)
     }
 
+    private var _isNudgeAvailable: Boolean = true
+    val isNudgeAvailable: Boolean get() = _isNudgeAvailable
+
+    /**
+     * Set the Android-local alias for a bonded [device]. Updates what Android's system Bluetooth
+     * settings display without touching the AirPods firmware itself. Uses reflection on the hidden
+     * `setAlias(String)` method because the public API 30+ variant requires `BLUETOOTH_PRIVILEGED`,
+     * which third-party apps cannot hold.
+     *
+     * Returns `true` on success, `false` if the call threw, was rejected, or returned `false`.
+     *
+     * Known failure mode on Android 12+: `SecurityException: does not have a CDM association with
+     * the Bluetooth Device`. The hidden method was moved behind a Companion Device Manager (CDM)
+     * permission check at the service layer — only apps that have explicitly requested and been
+     * granted a CDM association for this specific device can rename it. CAPod does not currently
+     * pursue a CDM association (that's a user-visible pairing flow), so setAlias is effectively
+     * unavailable on modern Android and callers should be prepared to surface a user-facing
+     * fallback when it returns false. See DeviceSettingsViewModel.setDeviceName.
+     */
+    @android.annotation.SuppressLint("MissingPermission")
+    fun setDeviceAlias(device: BluetoothDevice2, alias: String): Boolean {
+        return try {
+            val method = BluetoothDevice::class.java.getDeclaredMethod("setAlias", String::class.java)
+                .apply { isAccessible = true }
+            val result = method.invoke(device.internal, alias) as? Boolean ?: false
+            log(TAG) { "setDeviceAlias(${device.address}, $alias) -> $result" }
+            result
+        } catch (e: Exception) {
+            val cause = (e as? java.lang.reflect.InvocationTargetException)?.cause ?: e
+            log(TAG, WARN) { "setDeviceAlias(${device.address}, $alias) failed: $cause" }
+            false
+        }
+    }
+
     suspend fun nudgeConnection(device: BluetoothDevice2): Boolean = getBluetoothProfile().map { bluetoothProfile ->
         try {
             log(TAG) { "Nudging Android connection to $device" }
@@ -312,11 +346,16 @@ class BluetoothManager2 @Inject constructor(
                 "connect", BluetoothDevice::class.java
             ).apply { isAccessible = true }
 
-            connectMethod.invoke(bluetoothProfile.proxy, device.internal)
-
-            log(TAG) { "Nudged connection to $device" }
-            true
+            val accepted = connectMethod.invoke(bluetoothProfile.proxy, device.internal) as? Boolean ?: false
+            log(TAG) { "Nudged connection to $device — accepted=$accepted" }
+            accepted
         } catch (e: Exception) {
+            val isSecurityException = e is SecurityException ||
+                (e is java.lang.reflect.InvocationTargetException && e.cause is SecurityException)
+            if (isSecurityException) {
+                log(TAG, ERROR) { "nudgeConnection is permanently unavailable: missing MODIFY_PHONE_STATE permission" }
+                _isNudgeAvailable = false
+            }
             Bugs.report(tag = TAG, "BluetoothHeadset.connect(device) is unavailable", exception = e)
             false
         }

app/src/main/java/eu/darken/capod/common/bluetooth/l2cap/ArtMirror.kt

@@ -0,0 +1,71 @@
+@file:Suppress("unused")
+
+package eu.darken.capod.common.bluetooth.l2cap
+
+import androidx.annotation.Keep
+import java.lang.invoke.MethodType
+
+/**
+ * Mirror classes matching ART's internal field layout for offset calculation.
+ * [sun.misc.Unsafe.objectFieldOffset] on these classes gives the same offsets as the real
+ * hidden fields, because the field types and order are identical.
+ *
+ * Based on LSPosed/AndroidHiddenApiBypass (Apache 2.0)
+ * https://github.com/LSPosed/AndroidHiddenApiBypass
+ */
+@Keep
+object ArtMirror {
+
+    @Keep
+    open class AccessibleObject {
+        private val override: Boolean = false
+    }
+
+    @Keep
+    class Executable : AccessibleObject() {
+        private val declaringClass: Any? = null
+        private val declaringClassOfOverriddenMethod: Any? = null
+        private val parameters: Array<Any>? = null
+        @JvmField val artMethod: Long = 0
+        private val accessFlags: Int = 0
+    }
+
+    @Keep
+    class MethodHandle {
+        private val type: MethodType? = null
+        private val nominalType: MethodType? = null
+        private val cachedSpreadInvoker: MethodHandle? = null
+        private val handleKind: Int = 0
+        @JvmField val artFieldOrMethod: Long = 0
+    }
+
+    @Keep
+    class Class {
+        private val classLoader: ClassLoader? = null
+        private val componentType: kotlin.Any? = null
+        private val dexCache: kotlin.Any? = null
+        private val extData: kotlin.Any? = null
+        private val ifTable: Array<kotlin.Any>? = null
+        private val name: String? = null
+        private val superClass: kotlin.Any? = null
+        private val vtable: kotlin.Any? = null
+        @JvmField val iFields: Long = 0
+        @JvmField val methods: Long = 0
+        @JvmField val sFields: Long = 0
+        private val accessFlags: Int = 0
+        private val classFlags: Int = 0
+        private val classSize: Int = 0
+        private val clinitThreadId: Int = 0
+        private val dexClassDefIndex: Int = 0
+        @Volatile private var dexTypeIndex: Int = 0
+        private val numReferenceInstanceFields: Int = 0
+        private val numReferenceStaticFields: Int = 0
+        private val objectSize: Int = 0
+        private val objectSizeAllocFastPath: Int = 0
+        private val primitiveType: Int = 0
+        private val referenceInstanceOffsets: Int = 0
+        private val status: Int = 0
+        private val copiedMethodsOffset: Short = 0
+        private val virtualMethodsOffset: Short = 0
+    }
+}

app/src/main/java/eu/darken/capod/common/bluetooth/l2cap/HiddenApiBypass.kt

@@ -0,0 +1,132 @@
+package eu.darken.capod.common.bluetooth.l2cap
+
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import java.lang.invoke.MethodHandles
+import java.lang.invoke.MethodType
+import java.lang.reflect.Method
+
+/**
+ * Bypasses Android's hidden API restrictions by calling [dalvik.system.VMRuntime.setHiddenApiExemptions].
+ *
+ * Technique: Uses [sun.misc.Unsafe] to iterate ART's internal method array and swap a stub method's
+ * artMethod pointer to execute hidden methods. Mirror classes in [ArtMirror] provide field offsets
+ * without triggering hidden API checks.
+ *
+ * Based on LSPosed/AndroidHiddenApiBypass (Apache 2.0)
+ * https://github.com/LSPosed/AndroidHiddenApiBypass
+ *
+ * Copyright 2021 LSPosed
+ * Licensed under the Apache License, Version 2.0
+ */
+object HiddenApiBypass {
+
+    private val TAG = logTag("HiddenApiBypass")
+
+    private val exemptedPrefixes = mutableSetOf<String>()
+
+    @androidx.annotation.Keep
+    private object InvokeStub {
+        @JvmStatic
+        fun invoke(vararg args: Any?): Any? {
+            throw IllegalStateException("Stub — artMethod not swapped")
+        }
+    }
+
+    @Synchronized
+    fun setExemptions(vararg prefixes: String) {
+        // Merge with existing prefixes (VMRuntime.setHiddenApiExemptions replaces, not merges)
+        val newPrefixes = prefixes.filter { it !in exemptedPrefixes }
+        if (newPrefixes.isEmpty()) return
+
+        exemptedPrefixes.addAll(newPrefixes)
+        val allPrefixes = exemptedPrefixes.toTypedArray()
+
+        val unsafe = Class.forName("sun.misc.Unsafe").getDeclaredMethod("getUnsafe").invoke(null)
+        val unsafeClass = unsafe::class.java
+        val objectFieldOffset = unsafeClass.getMethod("objectFieldOffset", java.lang.reflect.Field::class.java)
+        val getLong = unsafeClass.getMethod("getLong", Any::class.java, Long::class.javaPrimitiveType)
+        val putLong = unsafeClass.getMethod("putLong", Any::class.java, Long::class.javaPrimitiveType, Long::class.javaPrimitiveType)
+        val getInt = unsafeClass.getMethod("getInt", Long::class.javaPrimitiveType)
+
+        // --- Offset calculation from mirror classes ---
+        val artMethodOff = objectFieldOffset.invoke(unsafe,
+            ArtMirror.Executable::class.java.getDeclaredField("artMethod")) as Long
+        val artFieldOrMethodOff = objectFieldOffset.invoke(unsafe,
+            ArtMirror.MethodHandle::class.java.getDeclaredField("artFieldOrMethod")) as Long
+        val methodsOff = objectFieldOffset.invoke(unsafe,
+            ArtMirror.Class::class.java.getDeclaredField("methods")) as Long
+
+        // --- Sanity check: verify artMethod offset matches the real accessible field ---
+        val realArtMethodOff = objectFieldOffset.invoke(unsafe,
+            java.lang.reflect.Executable::class.java.getDeclaredField("artMethod")) as Long
+        check(artMethodOff == realArtMethodOff) {
+            "ArtMirror.Executable.artMethod offset ($artMethodOff) != real offset ($realArtMethodOff). " +
+                    "ART field layout has changed — mirror classes need updating."
+        }
+
+        // --- Calculate artMethodSize and bias from NeverCall ---
+        val mA = NeverCall::class.java.getDeclaredMethod("a").apply { isAccessible = true }
+        val mB = NeverCall::class.java.getDeclaredMethod("b").apply { isAccessible = true }
+        val mhA = MethodHandles.lookup().unreflect(mA)
+        val mhB = MethodHandles.lookup().unreflect(mB)
+        val aAddr = getLong.invoke(unsafe, mhA, artFieldOrMethodOff) as Long
+        val bAddr = getLong.invoke(unsafe, mhB, artFieldOrMethodOff) as Long
+        val artMethodSize = bAddr - aAddr
+
+        check(artMethodSize in 16..256) {
+            "artMethodSize=$artMethodSize is outside expected range [16, 256]. ART internals may have changed."
+        }
+
+        val ncMethods = getLong.invoke(unsafe, NeverCall::class.java, methodsOff) as Long
+        val artMethodBias = aAddr - ncMethods - artMethodSize
+
+        // --- Iterate VMRuntime methods ---
+        val vmRuntimeClass = Class.forName("dalvik.system.VMRuntime")
+        val vmMethods = getLong.invoke(unsafe, vmRuntimeClass, methodsOff) as Long
+        val numMethods = getInt.invoke(unsafe, vmMethods) as Int
+
+        check(numMethods in 1..10000) {
+            "VMRuntime numMethods=$numMethods is outside expected range. Pointer may be invalid."
+        }
+
+        val stubMethod: Method = InvokeStub::class.java.getDeclaredMethod("invoke", Array<Any?>::class.java)
+        stubMethod.isAccessible = true
+        val originalArtMethod = getLong.invoke(unsafe, stubMethod, artMethodOff) as Long
+
+        var runtime: Any? = null
+        var exemptionsSet = false
+
+        try {
+            for (i in 0 until numMethods) {
+                val methodPtr = vmMethods + i * artMethodSize + artMethodBias
+                putLong.invoke(unsafe, stubMethod, artMethodOff, methodPtr)
+
+                val name = stubMethod.name
+                val params = stubMethod.parameterTypes
+
+                if (name == "getRuntime" && params.isEmpty() && runtime == null) {
+                    runtime = stubMethod.invoke(null)
+                }
+
+                if (name == "setHiddenApiExemptions" && params.size == 1 && params[0] == Array<String>::class.java) {
+                    if (runtime == null) {
+                        throw IllegalStateException("Found setHiddenApiExemptions before getRuntime")
+                    }
+                    stubMethod.invoke(runtime, allPrefixes as Any)
+                    exemptionsSet = true
+                    log(TAG, VERBOSE) { "setHiddenApiExemptions OK: ${allPrefixes.contentToString()}" }
+                }
+
+                if (runtime != null && exemptionsSet) break
+            }
+        } finally {
+            // Always restore the stub's original artMethod pointer
+            putLong.invoke(unsafe, stubMethod, artMethodOff, originalArtMethod)
+        }
+
+        if (runtime == null) throw RuntimeException("VMRuntime.getRuntime() not found in method array")
+        if (!exemptionsSet) throw RuntimeException("VMRuntime.setHiddenApiExemptions() not found in method array")
+    }
+}

app/src/main/java/eu/darken/capod/common/bluetooth/l2cap/L2capSocketFactory.kt

@@ -0,0 +1,102 @@
+package eu.darken.capod.common.bluetooth.l2cap
+
+import android.annotation.SuppressLint
+import android.bluetooth.BluetoothDevice
+import android.bluetooth.BluetoothSocket
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import java.io.IOException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Creates BR/EDR L2CAP sockets for connecting to devices like AirPods.
+ *
+ * Tries the public [android.bluetooth.BluetoothSocketSettings] API first (API 37+).
+ * Falls back to the hidden `createInsecureL2capSocket` method via [HiddenApiBypass].
+ */
+@Singleton
+@SuppressLint("MissingPermission")
+class L2capSocketFactory @Inject constructor() {
+
+    private val TAG = logTag("L2capSocketFactory")
+    private val TYPE_L2CAP = 3
+
+    /**
+     * Creates an insecure BR/EDR L2CAP socket for the given [device] and [psm].
+     *
+     * The socket is created but not connected — call [BluetoothSocket.connect] separately.
+     *
+     * @throws IllegalArgumentException if [psm] is invalid
+     * @throws SecurityException if BLUETOOTH_CONNECT permission is missing
+     * @throws NoSuchMethodException if the hidden API is unavailable on this Android version
+     * @throws IOException if socket creation fails at the transport level
+     */
+    fun createSocket(device: BluetoothDevice, psm: Int): BluetoothSocket {
+        require(psm > 0) { "Invalid PSM: $psm" }
+
+        // Strategy 1: Public API via BluetoothSocketSettings (API 37+)
+        tryPublicApi(device, psm)?.let { socket ->
+            log(TAG, VERBOSE) { "Socket created via public BluetoothSocketSettings API" }
+            return socket
+        }
+
+        // Strategy 2: Hidden API via reflection + bypass
+        log(TAG, VERBOSE) { "Public API unavailable, using hidden API bypass" }
+        return createViaHiddenApi(device, psm)
+    }
+
+    private fun tryPublicApi(device: BluetoothDevice, psm: Int): BluetoothSocket? {
+        return try {
+            val settingsClass = Class.forName("android.bluetooth.BluetoothSocketSettings")
+            val builderClass = Class.forName("android.bluetooth.BluetoothSocketSettings\$Builder")
+
+            val builder = builderClass.getDeclaredConstructor().newInstance()
+            builderClass.getMethod("setSocketType", Int::class.javaPrimitiveType).invoke(builder, TYPE_L2CAP)
+            builderClass.getMethod("setL2capPsm", Int::class.javaPrimitiveType).invoke(builder, psm)
+            builderClass.getMethod("setAuthenticationRequired", Boolean::class.javaPrimitiveType).invoke(builder, false)
+            builderClass.getMethod("setEncryptionRequired", Boolean::class.javaPrimitiveType).invoke(builder, false)
+            val settings = builderClass.getMethod("build").invoke(builder)
+
+            val createMethod = BluetoothDevice::class.java.getMethod("createUsingSocketSettings", settingsClass)
+            createMethod.invoke(device, settings) as BluetoothSocket
+        } catch (e: ClassNotFoundException) {
+            log(TAG, VERBOSE) { "BluetoothSocketSettings not available (pre-API 37)" }
+            null
+        } catch (e: Exception) {
+            val cause = if (e is java.lang.reflect.InvocationTargetException) e.cause ?: e else e
+            when (cause) {
+                is IllegalArgumentException -> {
+                    log(TAG, VERBOSE) { "BluetoothSocketSettings does not support TYPE_L2CAP: ${cause.message}" }
+                    null
+                }
+                is SecurityException -> throw cause
+                else -> {
+                    log(TAG, VERBOSE) { "BluetoothSocketSettings failed: ${cause::class.simpleName}: ${cause.message}" }
+                    null
+                }
+            }
+        }
+    }
+
+    private fun createViaHiddenApi(device: BluetoothDevice, psm: Int): BluetoothSocket {
+        HiddenApiBypass.setExemptions("Landroid/bluetooth/")
+
+        return try {
+            val method = BluetoothDevice::class.java.getDeclaredMethod(
+                "createInsecureL2capSocket",
+                Int::class.javaPrimitiveType
+            )
+            method.invoke(device, psm) as BluetoothSocket
+        } catch (e: java.lang.reflect.InvocationTargetException) {
+            throw e.cause ?: IOException("createInsecureL2capSocket failed", e)
+        } catch (e: NoSuchMethodException) {
+            throw e
+        } catch (e: SecurityException) {
+            throw e
+        } catch (e: ReflectiveOperationException) {
+            throw IOException("Failed to create L2CAP socket via hidden API", e)
+        }
+    }
+}

app/src/main/java/eu/darken/capod/common/bluetooth/l2cap/NeverCall.java

@@ -0,0 +1,14 @@
+package eu.darken.capod.common.bluetooth.l2cap;
+
+import androidx.annotation.Keep;
+
+/**
+ * Helper class for ART method size calculation.
+ * Methods a() and b() must be adjacent in ART's internal method array.
+ * Plain Java (not Kotlin) to avoid synthetic bridge methods from companion objects.
+ */
+@Keep
+class NeverCall {
+    private static void a() { throw new RuntimeException(); }
+    private static void b() { throw new RuntimeException(); }
+}

app/src/main/java/eu/darken/capod/common/compose/Reorderable.kt

@@ -0,0 +1,191 @@
+package eu.darken.capod.common.compose
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.gestures.detectDragGesturesAfterLongPress
+import androidx.compose.foundation.gestures.scrollBy
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.hapticfeedback.HapticFeedback
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalHapticFeedback
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.zIndex
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.isActive
+
+class ReorderableState<T>(
+    val lazyListState: LazyListState,
+    private val hapticFeedback: HapticFeedback,
+    private val key: (T) -> Any,
+) {
+    private val _items = mutableStateListOf<T>()
+    val items: List<T> get() = _items
+
+    private var originalItems: List<T> = emptyList()
+
+    var draggedIndex: Int? by mutableStateOf(null)
+        private set
+
+    var dragOffsetY: Float by mutableFloatStateOf(0f)
+        private set
+
+    val isDragging: Boolean get() = draggedIndex != null
+
+    fun syncItems(newItems: List<T>) {
+        if (isDragging) return
+        _items.clear()
+        _items.addAll(newItems)
+    }
+
+    fun onDragStart(item: T) {
+        val itemKey = key(item)
+        val index = _items.indexOfFirst { key(it) == itemKey }
+        if (index == -1) return
+        originalItems = _items.toList()
+        draggedIndex = index
+        dragOffsetY = 0f
+        hapticFeedback.performHapticFeedback(HapticFeedbackType.LongPress)
+    }
+
+    fun onDrag(delta: Float) {
+        val currentIndex = draggedIndex ?: return
+        dragOffsetY += delta
+
+        val layoutInfo = lazyListState.layoutInfo
+        val draggedItemInfo = layoutInfo.visibleItemsInfo
+            .firstOrNull { it.index == currentIndex } ?: return
+        val draggedCenter = draggedItemInfo.offset + draggedItemInfo.size / 2 + dragOffsetY.toInt()
+
+        val targetInfo = layoutInfo.visibleItemsInfo.firstOrNull { itemInfo ->
+            itemInfo.index != currentIndex &&
+                itemInfo.index < _items.size &&
+                draggedCenter in itemInfo.offset..(itemInfo.offset + itemInfo.size)
+        } ?: return
+
+        val targetIndex = targetInfo.index
+        dragOffsetY += (draggedItemInfo.offset - targetInfo.offset).toFloat()
+        _items.swap(currentIndex, targetIndex)
+        draggedIndex = targetIndex
+    }
+
+    fun onDragEnd(onReorder: (List<T>) -> Unit) {
+        val reordered = _items.toList()
+        draggedIndex = null
+        dragOffsetY = 0f
+        originalItems = emptyList()
+        onReorder(reordered)
+    }
+
+    fun onDragCancel() {
+        if (originalItems.isNotEmpty()) {
+            _items.clear()
+            _items.addAll(originalItems)
+        }
+        draggedIndex = null
+        dragOffsetY = 0f
+        originalItems = emptyList()
+    }
+}
+
+private fun <T> MutableList<T>.swap(from: Int, to: Int) {
+    val temp = this[from]
+    this[from] = this[to]
+    this[to] = temp
+}
+
+@Composable
+fun <T> rememberReorderableState(
+    lazyListState: LazyListState,
+    items: List<T>,
+    key: (T) -> Any,
+): ReorderableState<T> {
+    val hapticFeedback = LocalHapticFeedback.current
+    return remember(lazyListState) {
+        ReorderableState(lazyListState, hapticFeedback, key).also {
+            it.syncItems(items)
+        }
+    }
+}
+
+@Composable
+fun <T> ReorderableAutoScroll(state: ReorderableState<T>) {
+    val scrollThresholdPx = with(LocalDensity.current) { 80.dp.toPx() }
+    LaunchedEffect(state.isDragging) {
+        if (!state.isDragging) return@LaunchedEffect
+        while (isActive) {
+            val layoutInfo = state.lazyListState.layoutInfo
+            val viewportStart = layoutInfo.viewportStartOffset
+            val viewportEnd = layoutInfo.viewportEndOffset
+            val draggedIdx = state.draggedIndex ?: break
+            val draggedItem = layoutInfo.visibleItemsInfo.firstOrNull { it.index == draggedIdx }
+            if (draggedItem != null) {
+                val itemCenter = draggedItem.offset + draggedItem.size / 2 + state.dragOffsetY
+                val scrollSpeed = 8f
+                val delta = when {
+                    itemCenter < viewportStart + scrollThresholdPx -> -scrollSpeed
+                    itemCenter > viewportEnd - scrollThresholdPx -> scrollSpeed
+                    else -> 0f
+                }
+                if (delta != 0f) state.lazyListState.scrollBy(delta)
+            }
+            delay(16)
+        }
+    }
+}
+
+@Composable
+fun <T> reorderableItemModifier(
+    state: ReorderableState<T>,
+    index: Int,
+    item: T,
+    enabled: Boolean = true,
+    onReorder: (List<T>) -> Unit = {},
+): Modifier {
+    val isDragging = state.draggedIndex == index
+    val dragOffsetY = if (isDragging) state.dragOffsetY else 0f
+
+    val currentItem by rememberUpdatedState(item)
+    val currentOnReorder by rememberUpdatedState(onReorder)
+
+    val surfaceColor = MaterialTheme.colorScheme.surface
+
+    return Modifier
+        .zIndex(if (isDragging) 1f else 0f)
+        .background(surfaceColor)
+        .then(
+            if (enabled) {
+                Modifier.pointerInput(Unit) {
+                    detectDragGesturesAfterLongPress(
+                        onDragStart = { state.onDragStart(currentItem) },
+                        onDrag = { change, dragAmount ->
+                            change.consume()
+                            state.onDrag(dragAmount.y)
+                        },
+                        onDragEnd = { state.onDragEnd(currentOnReorder) },
+                        onDragCancel = { state.onDragCancel() },
+                    )
+                }
+            } else {
+                Modifier
+            }
+        )
+        .graphicsLayer {
+            if (isDragging) {
+                translationY = dragOffsetY
+                shadowElevation = 8.dp.toPx()
+            }
+        }
+}

app/src/main/java/eu/darken/capod/common/compose/preview/MockPodDataProvider.kt

@@ -4,16 +4,23 @@ import android.content.Context
 import eu.darken.capod.R
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.upgrade.UpgradeRepo
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.HasCase
-import eu.darken.capod.pods.core.HasChargeDetection
-import eu.darken.capod.pods.core.HasChargeDetectionDual
-import eu.darken.capod.pods.core.HasDualMicrophone
-import eu.darken.capod.pods.core.HasEarDetection
-import eu.darken.capod.pods.core.HasEarDetectionDual
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.SinglePodDevice
-import eu.darken.capod.pods.core.unknown.UnknownDevice
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.monitor.core.cache.CachedDeviceState
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.DualBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.SingleBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.devices.ApplePods
+import eu.darken.capod.pods.core.apple.ble.devices.HasCase
+import eu.darken.capod.pods.core.apple.ble.devices.HasChargeDetection
+import eu.darken.capod.pods.core.apple.ble.devices.HasChargeDetectionDual
+import eu.darken.capod.pods.core.apple.ble.devices.HasDualMicrophone
+import eu.darken.capod.pods.core.apple.ble.devices.HasEarDetection
+import eu.darken.capod.pods.core.apple.ble.devices.HasEarDetectionDual
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPayload
+import eu.darken.capod.pods.core.unknown.UnknownSnapshotBle
 import eu.darken.capod.profiles.core.AppleDeviceProfile
 import eu.darken.capod.profiles.core.DeviceProfile
 import java.time.Instant
@@ -35,8 +42,8 @@ object MockPodDataProvider {
 
     // --- Dual pod scenarios ---
 
-    fun airPodsProFullCharge(): DualPodDevice = MockDualPodDevice(
-        _model = PodDevice.Model.AIRPODS_PRO2,
+    fun airPodsProFullCharge(): DualBlePodSnapshot = MockDualBlePodSnapshot(
+        _model = PodModel.AIRPODS_PRO2,
         _label = "Work AirPods",
         batteryLeftPodPercent = 1.0f,
         batteryRightPodPercent = 1.0f,
@@ -44,10 +51,11 @@ object MockPodDataProvider {
         leftPodIcon = R.drawable.device_airpods_pro2_left,
         rightPodIcon = R.drawable.device_airpods_pro2_right,
         _caseIcon = R.drawable.device_airpods_pro2_case,
+        _address = "AA:BB:CC:DD:EE:FF",
     )
 
-    fun airPodsProMixed(): DualPodDevice = MockDualPodDevice(
-        _model = PodDevice.Model.AIRPODS_PRO2,
+    fun airPodsProMixed(): DualBlePodSnapshot = MockDualBlePodSnapshot(
+        _model = PodModel.AIRPODS_PRO2,
         _label = "My AirPods Pro",
         batteryLeftPodPercent = 0.80f,
         batteryRightPodPercent = 0.45f,
@@ -58,8 +66,8 @@ object MockPodDataProvider {
         _caseIcon = R.drawable.device_airpods_pro2_case,
     )
 
-    fun airPodsProLowBattery(): DualPodDevice = MockDualPodDevice(
-        _model = PodDevice.Model.AIRPODS_PRO2,
+    fun airPodsProLowBattery(): DualBlePodSnapshot = MockDualBlePodSnapshot(
+        _model = PodModel.AIRPODS_PRO2,
         _label = "My AirPods Pro",
         batteryLeftPodPercent = 0.10f,
         batteryRightPodPercent = 0.05f,
@@ -71,8 +79,8 @@ object MockPodDataProvider {
         _caseIcon = R.drawable.device_airpods_pro2_case,
     )
 
-    fun airPodsProInCase(): DualPodDevice = MockDualPodDevice(
-        _model = PodDevice.Model.AIRPODS_PRO2,
+    fun airPodsProInCase(): DualBlePodSnapshot = MockDualBlePodSnapshot(
+        _model = PodModel.AIRPODS_PRO2,
         _label = "My AirPods Pro",
         batteryLeftPodPercent = null,
         batteryRightPodPercent = null,
@@ -82,8 +90,8 @@ object MockPodDataProvider {
         _caseIcon = R.drawable.device_airpods_pro2_case,
     )
 
-    fun airPodsGen1Wearing(): DualPodDevice = MockDualPodDevice(
-        _model = PodDevice.Model.AIRPODS_GEN1,
+    fun airPodsGen1Wearing(): DualBlePodSnapshot = MockDualBlePodSnapshot(
+        _model = PodModel.AIRPODS_GEN1,
         _label = "Old AirPods",
         batteryLeftPodPercent = 0.70f,
         batteryRightPodPercent = 0.65f,
@@ -96,8 +104,8 @@ object MockPodDataProvider {
         _caseIcon = R.drawable.device_airpods_gen1_case,
     )
 
-    fun powerBeatsPro(): DualPodDevice = MockDualPodDeviceNoCase(
-        _model = PodDevice.Model.POWERBEATS_PRO,
+    fun powerBeatsPro(): DualBlePodSnapshot = MockDualBlePodSnapshotNoCase(
+        _model = PodModel.POWERBEATS_PRO,
         _label = "PowerBeats Pro",
         batteryLeftPodPercent = 0.55f,
         batteryRightPodPercent = 0.60f,
@@ -107,39 +115,159 @@ object MockPodDataProvider {
 
     // --- Single pod scenarios ---
 
-    fun airPodsMax(): SinglePodDevice = MockSinglePodDevice(
-        _model = PodDevice.Model.AIRPODS_MAX,
+    fun airPodsMax(): SingleBlePodSnapshot = MockSingleBlePodSnapshot(
+        _model = PodModel.AIRPODS_MAX,
         _label = "AirPods Max",
         batteryHeadsetPercent = 0.85f,
         _isBeingWorn = true,
     )
 
-    fun airPodsMaxCharging(): SinglePodDevice = MockSinglePodDevice(
-        _model = PodDevice.Model.AIRPODS_MAX,
+    fun airPodsMaxCharging(): SingleBlePodSnapshot = MockSingleAppleBlePodSnapshot(
+        _model = PodModel.AIRPODS_MAX,
         _label = "AirPods Max",
         batteryHeadsetPercent = 0.40f,
         _isHeadsetBeingCharged = true,
+        _isIRKMatch = true,
+        _hasPrivatePayload = true,
+        _address = "11:22:33:44:55:66",
     )
 
-    fun beatsSolo3(): SinglePodDevice = MockSinglePodDevice(
-        _model = PodDevice.Model.BEATS_SOLO_3,
+    fun beatsSolo3(): SingleBlePodSnapshot = MockSingleBlePodSnapshot(
+        _model = PodModel.BEATS_SOLO_3,
         _label = "Beats Solo 3",
         batteryHeadsetPercent = 0.70f,
     )
 
     // --- Unknown device ---
 
-    fun unknownDevice(): PodDevice = UnknownDevice(
+    fun unknownDevice(): BlePodSnapshot = UnknownSnapshotBle(
         scanResult = dummyScanResult(rssi = -70),
     )
 
     // --- Profile helpers ---
 
-    fun profile(label: String, model: PodDevice.Model): AppleDeviceProfile = AppleDeviceProfile(
+    fun profile(label: String, model: PodModel): AppleDeviceProfile = AppleDeviceProfile(
         label = label,
         model = model,
     )
 
+    // --- Dual pod with Apple keys ---
+
+    fun airPodsProWithKeys(): DualBlePodSnapshot = MockDualAppleBlePodSnapshot(
+        _model = PodModel.AIRPODS_PRO2,
+        _label = "My AirPods Pro",
+        batteryLeftPodPercent = 0.80f,
+        batteryRightPodPercent = 0.45f,
+        _batteryCasePercent = 0.60f,
+        _isIRKMatch = true,
+        _hasPrivatePayload = true,
+        leftPodIcon = R.drawable.device_airpods_pro2_left,
+        rightPodIcon = R.drawable.device_airpods_pro2_right,
+        _caseIcon = R.drawable.device_airpods_pro2_case,
+        _address = "AA:BB:CC:DD:EE:FF",
+    )
+
+    // --- PodDevice wrappers ---
+
+    fun dualPodMonitored(): PodDevice = PodDevice(
+        profileId = "preview-dual",
+        ble = airPodsProFullCharge(),
+        aap = null,
+    )
+
+    fun dualPodMonitoredMixed(): PodDevice = PodDevice(
+        profileId = "preview-dual-mixed",
+        ble = airPodsProMixed(),
+        aap = null,
+    )
+
+    fun dualPodMonitoredWithKeys(): PodDevice = PodDevice(
+        profileId = "preview-dual-keys",
+        ble = airPodsProWithKeys(),
+        aap = null,
+    )
+
+    fun dualPodMonitoredWithAap(): PodDevice = PodDevice(
+        profileId = "preview-dual-aap",
+        ble = airPodsProWithKeys(),
+        aap = AapPodState(
+            connectionState = AapPodState.ConnectionState.READY,
+            settings = mapOf(
+                AapSetting.AncMode::class to AapSetting.AncMode(
+                    current = AapSetting.AncMode.Value.ADAPTIVE,
+                    supported = listOf(
+                        AapSetting.AncMode.Value.OFF,
+                        AapSetting.AncMode.Value.ON,
+                        AapSetting.AncMode.Value.TRANSPARENCY,
+                        AapSetting.AncMode.Value.ADAPTIVE,
+                    ),
+                ),
+            ),
+        ),
+    )
+
+    fun singlePodMonitored(): PodDevice = PodDevice(
+        profileId = "preview-single",
+        ble = airPodsMax(),
+        aap = null,
+    )
+
+    fun singlePodMonitoredWithAap(): PodDevice = PodDevice(
+        profileId = "preview-single-aap",
+        ble = airPodsMaxCharging(),
+        aap = AapPodState(
+            connectionState = AapPodState.ConnectionState.READY,
+            settings = mapOf(
+                AapSetting.AncMode::class to AapSetting.AncMode(
+                    current = AapSetting.AncMode.Value.ON,
+                    supported = listOf(
+                        AapSetting.AncMode.Value.OFF,
+                        AapSetting.AncMode.Value.ON,
+                        AapSetting.AncMode.Value.TRANSPARENCY,
+                    ),
+                ),
+            ),
+        ),
+    )
+
+    fun unknownMonitored(): PodDevice = PodDevice(
+        profileId = null,
+        ble = unknownDevice(),
+        aap = null,
+    )
+
+    /** Cached-only dual pod — device fully offline, showing last known state. */
+    fun dualPodCachedOnly(): PodDevice = PodDevice(
+        profileId = "preview-cached",
+        ble = null,
+        aap = null,
+        cached = CachedDeviceState(
+            profileId = "preview-cached",
+            model = PodModel.AIRPODS_PRO2,
+            address = "AA:BB:CC:DD:EE:FF",
+            left = CachedDeviceState.CachedBatterySlot(0.65f, MOCK_NOW.minusSeconds(3600)),
+            right = CachedDeviceState.CachedBatterySlot(0.50f, MOCK_NOW.minusSeconds(3600)),
+            case = CachedDeviceState.CachedBatterySlot(0.80f, MOCK_NOW.minusSeconds(3600)),
+            isLeftCharging = false,
+            isRightCharging = false,
+            isCaseCharging = false,
+            lastSeenAt = MOCK_NOW.minusSeconds(3600),
+        ),
+    )
+
+    /** Cached-only single pod — device fully offline, showing last known state. */
+    fun singlePodCachedOnly(): PodDevice = PodDevice(
+        profileId = "preview-cached-single",
+        ble = null,
+        aap = null,
+        cached = CachedDeviceState(
+            profileId = "preview-cached-single",
+            model = PodModel.AIRPODS_MAX,
+            headset = CachedDeviceState.CachedBatterySlot(0.40f, MOCK_NOW.minusSeconds(7200)),
+            lastSeenAt = MOCK_NOW.minusSeconds(7200),
+        ),
+    )
+
     // --- UpgradeInfo ---
 
     fun fossInfo(isPro: Boolean = false): UpgradeRepo.Info = MockUpgradeInfo(
@@ -160,8 +288,8 @@ private data class MockUpgradeInfo(
     override val error: Throwable? = null,
 ) : UpgradeRepo.Info
 
-private class MockDualPodDevice(
-    private val _model: PodDevice.Model,
+private class MockDualBlePodSnapshot(
+    private val _model: PodModel,
     private val _label: String,
     override val batteryLeftPodPercent: Float?,
     override val batteryRightPodPercent: Float?,
@@ -176,10 +304,11 @@ private class MockDualPodDevice(
     override val leftPodIcon: Int = R.drawable.device_airpods_gen1_left,
     override val rightPodIcon: Int = R.drawable.device_airpods_gen1_right,
     private val _caseIcon: Int = R.drawable.device_airpods_gen1_case,
+    private val _address: String? = null,
     rssi: Int = -50,
-) : DualPodDevice, HasCase, HasChargeDetectionDual, HasEarDetectionDual, HasDualMicrophone {
-    override val identifier: PodDevice.Id = PodDevice.Id()
-    override val model: PodDevice.Model = _model
+) : DualBlePodSnapshot, HasCase, HasChargeDetectionDual, HasEarDetectionDual, HasDualMicrophone {
+    override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id()
+    override val model: PodModel = _model
     override val seenLastAt: Instant = MOCK_NOW
     override val seenFirstAt: Instant = MOCK_NOW
     override val seenCounter: Int = 5
@@ -187,8 +316,8 @@ private class MockDualPodDevice(
     override val reliability: Float = 1.0f
     override val signalQuality: Float = 0.75f
     override val iconRes: Int = _model.iconRes
-    override val meta: PodDevice.Meta = object : PodDevice.Meta {
-        override val profile: DeviceProfile = AppleDeviceProfile(label = _label, model = _model)
+    override val meta: BlePodSnapshot.Meta = object : BlePodSnapshot.Meta {
+        override val profile: DeviceProfile = AppleDeviceProfile(label = _label, model = _model, address = _address)
     }
 
     override fun getLabel(context: Context): String = _model.label
@@ -211,17 +340,17 @@ private class MockDualPodDevice(
     override val isRightPodMicrophone: Boolean = _isRightPodMicrophone
 }
 
-private class MockDualPodDeviceNoCase(
-    private val _model: PodDevice.Model,
+private class MockDualBlePodSnapshotNoCase(
+    private val _model: PodModel,
     private val _label: String,
     override val batteryLeftPodPercent: Float?,
     override val batteryRightPodPercent: Float?,
     override val leftPodIcon: Int = R.drawable.device_airpods_gen1_left,
     override val rightPodIcon: Int = R.drawable.device_airpods_gen1_right,
     rssi: Int = -50,
-) : DualPodDevice, HasChargeDetectionDual, HasEarDetectionDual {
-    override val identifier: PodDevice.Id = PodDevice.Id()
-    override val model: PodDevice.Model = _model
+) : DualBlePodSnapshot, HasChargeDetectionDual, HasEarDetectionDual {
+    override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id()
+    override val model: PodModel = _model
     override val seenLastAt: Instant = MOCK_NOW
     override val seenFirstAt: Instant = MOCK_NOW
     override val seenCounter: Int = 5
@@ -229,7 +358,7 @@ private class MockDualPodDeviceNoCase(
     override val reliability: Float = 1.0f
     override val signalQuality: Float = 0.70f
     override val iconRes: Int = _model.iconRes
-    override val meta: PodDevice.Meta = object : PodDevice.Meta {
+    override val meta: BlePodSnapshot.Meta = object : BlePodSnapshot.Meta {
         override val profile: DeviceProfile = AppleDeviceProfile(label = _label, model = _model)
     }
 
@@ -244,16 +373,16 @@ private class MockDualPodDeviceNoCase(
     override val isRightPodInEar: Boolean = false
 }
 
-private class MockSinglePodDevice(
-    private val _model: PodDevice.Model,
+private class MockSingleBlePodSnapshot(
+    private val _model: PodModel,
     private val _label: String,
     override val batteryHeadsetPercent: Float?,
     private val _isHeadsetBeingCharged: Boolean = false,
     private val _isBeingWorn: Boolean = false,
     rssi: Int = -50,
-) : SinglePodDevice, HasChargeDetection, HasEarDetection {
-    override val identifier: PodDevice.Id = PodDevice.Id()
-    override val model: PodDevice.Model = _model
+) : SingleBlePodSnapshot, HasChargeDetection, HasEarDetection {
+    override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id()
+    override val model: PodModel = _model
     override val seenLastAt: Instant = MOCK_NOW
     override val seenFirstAt: Instant = MOCK_NOW
     override val seenCounter: Int = 5
@@ -261,7 +390,7 @@ private class MockSinglePodDevice(
     override val reliability: Float = 1.0f
     override val signalQuality: Float = 0.80f
     override val iconRes: Int = _model.iconRes
-    override val meta: PodDevice.Meta = object : PodDevice.Meta {
+    override val meta: BlePodSnapshot.Meta = object : BlePodSnapshot.Meta {
         override val profile: DeviceProfile = AppleDeviceProfile(label = _label, model = _model)
     }
 
@@ -273,3 +402,102 @@ private class MockSinglePodDevice(
     // HasEarDetection
     override val isBeingWorn: Boolean = _isBeingWorn
 }
+
+@Suppress("PropertyName")
+private class MockSingleAppleBlePodSnapshot(
+    private val _model: PodModel,
+    private val _label: String,
+    override val batteryHeadsetPercent: Float?,
+    private val _isHeadsetBeingCharged: Boolean = false,
+    private val _isBeingWorn: Boolean = false,
+    private val _isIRKMatch: Boolean = false,
+    private val _hasPrivatePayload: Boolean = false,
+    private val _address: String? = null,
+    rssi: Int = -50,
+) : SingleBlePodSnapshot, ApplePods, HasChargeDetection, HasEarDetection {
+    override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id()
+    override val model: PodModel = _model
+    override val seenLastAt: Instant = MOCK_NOW
+    override val seenFirstAt: Instant = MOCK_NOW
+    override val seenCounter: Int = 5
+    override val scanResult: BleScanResult = MockPodDataProvider.dummyScanResult(rssi)
+    override val reliability: Float = 1.0f
+    override val signalQuality: Float = 0.80f
+    override val iconRes: Int = _model.iconRes
+    override val meta: ApplePods.AppleMeta = ApplePods.AppleMeta(
+        isIRKMatch = _isIRKMatch,
+        profile = AppleDeviceProfile(label = _label, model = _model, address = _address),
+    )
+    override val payload: ProximityPayload = ProximityPayload(
+        public = ProximityPayload.Public(UByteArray(9)),
+        private = if (_hasPrivatePayload) ProximityPayload.Private(UByteArray(8)) else null,
+    )
+
+    override fun getLabel(context: Context): String = _model.label
+
+    // HasChargeDetection
+    override val isHeadsetBeingCharged: Boolean = _isHeadsetBeingCharged
+
+    // HasEarDetection
+    override val isBeingWorn: Boolean = _isBeingWorn
+}
+
+@Suppress("PropertyName")
+private class MockDualAppleBlePodSnapshot(
+    private val _model: PodModel,
+    private val _label: String,
+    override val batteryLeftPodPercent: Float?,
+    override val batteryRightPodPercent: Float?,
+    private val _batteryCasePercent: Float?,
+    private val _isCaseCharging: Boolean = false,
+    private val _isLeftPodCharging: Boolean = false,
+    private val _isRightPodCharging: Boolean = false,
+    private val _isLeftPodInEar: Boolean = false,
+    private val _isRightPodInEar: Boolean = false,
+    private val _isLeftPodMicrophone: Boolean = false,
+    private val _isRightPodMicrophone: Boolean = false,
+    private val _isIRKMatch: Boolean = false,
+    private val _hasPrivatePayload: Boolean = false,
+    override val leftPodIcon: Int = R.drawable.device_airpods_gen1_left,
+    override val rightPodIcon: Int = R.drawable.device_airpods_gen1_right,
+    private val _caseIcon: Int = R.drawable.device_airpods_gen1_case,
+    private val _address: String? = null,
+    rssi: Int = -50,
+) : DualBlePodSnapshot, ApplePods, HasCase, HasChargeDetectionDual, HasEarDetectionDual, HasDualMicrophone {
+    override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id()
+    override val model: PodModel = _model
+    override val seenLastAt: Instant = MOCK_NOW
+    override val seenFirstAt: Instant = MOCK_NOW
+    override val seenCounter: Int = 5
+    override val scanResult: BleScanResult = MockPodDataProvider.dummyScanResult(rssi)
+    override val reliability: Float = 1.0f
+    override val signalQuality: Float = 0.75f
+    override val iconRes: Int = _model.iconRes
+    override val meta: ApplePods.AppleMeta = ApplePods.AppleMeta(
+        isIRKMatch = _isIRKMatch,
+        profile = AppleDeviceProfile(label = _label, model = _model, address = _address),
+    )
+    override val payload: ProximityPayload = ProximityPayload(
+        public = ProximityPayload.Public(UByteArray(9)),
+        private = if (_hasPrivatePayload) ProximityPayload.Private(UByteArray(8)) else null,
+    )
+
+    override fun getLabel(context: Context): String = _model.label
+
+    // HasCase
+    override val batteryCasePercent: Float? = _batteryCasePercent
+    override val isCaseCharging: Boolean = _isCaseCharging
+    override val caseIcon: Int = _caseIcon
+
+    // HasChargeDetectionDual
+    override val isLeftPodCharging: Boolean = _isLeftPodCharging
+    override val isRightPodCharging: Boolean = _isRightPodCharging
+
+    // HasEarDetectionDual
+    override val isLeftPodInEar: Boolean = _isLeftPodInEar
+    override val isRightPodInEar: Boolean = _isRightPodInEar
+
+    // HasDualMicrophone
+    override val isLeftPodMicrophone: Boolean = _isLeftPodMicrophone
+    override val isRightPodMicrophone: Boolean = _isRightPodMicrophone
+}

app/src/main/java/eu/darken/capod/common/dagger/AndroidModule.kt

@@ -33,4 +33,5 @@ class AndroidModule {
     @Singleton
     fun audioManager(context: Context): AudioManager =
         context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+
 }

app/src/main/java/eu/darken/capod/common/navigation/Nav.kt

@@ -21,6 +21,12 @@ object Nav {
 
         @Serializable
         data object Upgrade : Main
+
+        @Serializable
+        data class DeviceSettings(val address: String) : Main
+
+        @Serializable
+        data object StemActionConfig : Main
     }
 
     sealed interface Settings : NavigationDestination {

app/src/main/java/eu/darken/capod/common/settings/SettingsBaseItem.kt

@@ -58,18 +58,26 @@ fun SettingsBaseItem(
             Color.Unspecified
         }
 
+        val iconModifier = if (subtitle != null) {
+            Modifier
+                .align(Alignment.Top)
+                .padding(top = 2.dp)
+                .size(iconSize)
+        } else {
+            Modifier.size(iconSize)
+        }
         if (icon != null) {
             Icon(
                 imageVector = icon,
                 contentDescription = null,
-                modifier = Modifier.size(iconSize),
+                modifier = iconModifier,
                 tint = tint,
             )
         } else if (iconPainter != null) {
             Icon(
                 painter = iconPainter,
                 contentDescription = null,
-                modifier = Modifier.size(iconSize),
+                modifier = iconModifier,
                 tint = tint,
             )
         }

app/src/main/java/eu/darken/capod/common/settings/SettingsSliderItem.kt

@@ -1,8 +1,11 @@
 package eu.darken.capod.common.settings
 
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Slider
 import androidx.compose.material3.Text
@@ -26,6 +29,7 @@ fun SettingsSliderItem(
     valueRange: ClosedFloatingPointRange<Float> = 0f..1f,
     steps: Int = 0,
     enabled: Boolean = true,
+    onValueChangeFinished: (() -> Unit)? = null,
     valueLabel: ((Float) -> String)? = null,
 ) {
     Column(modifier = modifier.fillMaxWidth()) {
@@ -35,28 +39,33 @@ fun SettingsSliderItem(
             subtitle = subtitle,
             onClick = {},
             enabled = enabled,
-            trailingContent = if (valueLabel != null) {
-                {
-                    Text(
-                        text = valueLabel(value),
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.6f),
-                        modifier = Modifier.padding(start = 16.dp)
-                    )
-                }
-            } else null,
         )
-        Slider(
-            value = value,
-            onValueChange = onValueChange,
-            valueRange = valueRange,
-            steps = steps,
-            enabled = enabled,
+        Row(
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(horizontal = 56.dp)
                 .padding(bottom = 8.dp),
-        )
+            verticalAlignment = androidx.compose.ui.Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(8.dp),
+        ) {
+            Slider(
+                value = value,
+                onValueChange = onValueChange,
+                onValueChangeFinished = onValueChangeFinished,
+                valueRange = valueRange,
+                steps = steps,
+                enabled = enabled,
+                modifier = Modifier.weight(1f),
+            )
+            if (valueLabel != null) {
+                Text(
+                    text = valueLabel(value),
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface.copy(alpha = if (enabled) 0.6f else 0.3f),
+                    modifier = Modifier.width(42.dp),
+                )
+            }
+        }
     }
 }
 

app/src/main/java/eu/darken/capod/main/core/GeneralSettings.kt

@@ -16,9 +16,9 @@ import eu.darken.capod.common.serialization.SerializationCapod
 import eu.darken.capod.common.theming.ThemeColor
 import eu.darken.capod.common.theming.ThemeMode
 import eu.darken.capod.common.theming.ThemeStyle
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.apple.protocol.IdentityResolvingKey
-import eu.darken.capod.pods.core.apple.protocol.ProximityEncryptionKey
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.ble.protocol.IdentityResolvingKey
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityEncryptionKey
 import kotlinx.serialization.builtins.nullable
 import kotlinx.serialization.json.Json
 import javax.inject.Inject
@@ -54,7 +54,8 @@ class GeneralSettings @Inject constructor(
         writer = { value -> value },
     )
 
-    val oldMainDeviceModel = dataStore.createValue("core.maindevice.model", PodDevice.Model.UNKNOWN, json, onErrorFallbackToDefault = true)
+    val oldMainDeviceModel =
+        dataStore.createValue("core.maindevice.model", PodModel.UNKNOWN, json, onErrorFallbackToDefault = true)
 
     val oldMainDeviceIdentityKey = dataStore.createValue<IdentityResolvingKey?>(
         key = "core.maindevice.identitykey",

app/src/main/java/eu/darken/capod/main/ui/devicesettings/DeviceSettingsNavigation.kt

@@ -0,0 +1,28 @@
+package eu.darken.capod.main.ui.devicesettings
+
+import androidx.navigation3.runtime.EntryProviderScope
+import androidx.navigation3.runtime.NavKey
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import dagger.multibindings.IntoSet
+import eu.darken.capod.common.navigation.Nav
+import eu.darken.capod.common.navigation.NavigationEntry
+import javax.inject.Inject
+
+class DeviceSettingsNavigation @Inject constructor() : NavigationEntry {
+    override fun EntryProviderScope<NavKey>.setup() {
+        entry<Nav.Main.DeviceSettings> { key ->
+            DeviceSettingsScreenHost(address = key.address)
+        }
+    }
+
+    @Module
+    @InstallIn(SingletonComponent::class)
+    abstract class Mod {
+        @Binds
+        @IntoSet
+        abstract fun bind(entry: DeviceSettingsNavigation): NavigationEntry
+    }
+}

app/src/main/java/eu/darken/capod/main/ui/devicesettings/DeviceSettingsViewModel.kt

@@ -0,0 +1,226 @@
+package eu.darken.capod.main.ui.devicesettings
+
+import dagger.hilt.android.lifecycle.HiltViewModel
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.bluetooth.BluetoothManager2
+import eu.darken.capod.common.coroutine.DispatcherProvider
+import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.SingleEventFlow
+import eu.darken.capod.common.uix.ViewModel4
+import eu.darken.capod.monitor.core.DeviceMonitor
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.common.navigation.Nav
+import eu.darken.capod.common.upgrade.UpgradeRepo
+import eu.darken.capod.common.upgrade.isPro
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.channelFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.isActive
+import java.time.Instant
+import javax.inject.Inject
+
+@HiltViewModel
+class DeviceSettingsViewModel @Inject constructor(
+    dispatcherProvider: DispatcherProvider,
+    private val deviceMonitor: DeviceMonitor,
+    private val aapManager: AapConnectionManager,
+    private val upgradeRepo: UpgradeRepo,
+    private val bluetoothManager: BluetoothManager2,
+) : ViewModel4(dispatcherProvider) {
+
+    private val targetAddress = MutableStateFlow<BluetoothAddress?>(null)
+    private var initialized = false
+
+    fun initialize(address: BluetoothAddress) {
+        if (initialized && targetAddress.value == address) return
+        initialized = true
+        targetAddress.value = address
+    }
+
+    private val updateTicker = channelFlow<Unit> {
+        while (isActive) {
+            trySend(Unit)
+            delay(3000)
+        }
+    }
+
+    private val isForceConnecting = MutableStateFlow(false)
+
+    sealed interface Event {
+        data object OpenBluetoothSettings : Event
+        data class SendFailed(val command: AapCommand, val message: String?) : Event
+        data object SystemRenameUnavailable : Event
+    }
+
+    val events = SingleEventFlow<Event>()
+
+    val state = targetAddress.flatMapLatest { address ->
+        if (address == null) return@flatMapLatest flowOf(State(device = null))
+        combine(
+            updateTicker,
+            deviceMonitor.devices,
+            upgradeRepo.upgradeInfo,
+            isForceConnecting,
+        ) { _, devices, upgrade, forcing ->
+            State(
+                device = devices.firstOrNull { it.address == address },
+                now = Instant.now(),
+                isPro = upgrade.isPro,
+                isNudgeAvailable = bluetoothManager.isNudgeAvailable,
+                isForceConnecting = forcing,
+            )
+        }
+    }.asLiveState()
+
+    data class State(
+        val device: PodDevice?,
+        val now: Instant = Instant.now(),
+        val isPro: Boolean = false,
+        val isNudgeAvailable: Boolean = true,
+        val isForceConnecting: Boolean = false,
+    )
+
+    fun forceConnect() = launch {
+        if (!isForceConnecting.compareAndSet(expect = false, update = true)) {
+            log(TAG) { "forceConnect already in progress" }
+            return@launch
+        }
+        try {
+            val address = targetAddress.value ?: run {
+                events.tryEmit(Event.OpenBluetoothSettings)
+                return@launch
+            }
+            val bonded = try {
+                bluetoothManager.bondedDevices().first().firstOrNull { it.address == address }
+            } catch (e: Exception) {
+                log(TAG, WARN) { "bondedDevices() failed: ${e.message}" }
+                null
+            }
+            if (bonded == null) {
+                log(TAG, WARN) { "No bonded device for $address — opening Bluetooth settings" }
+                events.tryEmit(Event.OpenBluetoothSettings)
+                return@launch
+            }
+            if (!bluetoothManager.isNudgeAvailable) {
+                events.tryEmit(Event.OpenBluetoothSettings)
+                return@launch
+            }
+            val accepted = try {
+                bluetoothManager.nudgeConnection(bonded)
+            } catch (e: Exception) {
+                log(TAG, WARN) { "nudgeConnection threw: ${e.message}" }
+                false
+            }
+            log(TAG) { "nudgeConnection($bonded) accepted=$accepted" }
+            if (!accepted) {
+                events.tryEmit(Event.OpenBluetoothSettings)
+            }
+            // On accepted=true, AapAutoConnect.initialConnect() will pick up the new
+            // connectedDevices entry and trigger the AAP handshake. The card disappears
+            // when device.isAapConnected becomes true.
+        } finally {
+            isForceConnecting.value = false
+        }
+    }
+
+    private suspend fun sendInternal(command: AapCommand) {
+        val address = targetAddress.value ?: return
+        try {
+            aapManager.sendCommand(address, command)
+            log(TAG) { "Sent $command to $address" }
+        } catch (e: Exception) {
+            log(TAG, WARN) { "Failed to send $command: ${e.message}" }
+            // SingleEventFlow is backed by a BUFFERED Channel — use the suspending emit to avoid
+            // dropping the event under momentary backpressure.
+            events.emit(Event.SendFailed(command, e.message))
+        }
+    }
+
+    private fun send(command: AapCommand) {
+        launch { sendInternal(command) }
+    }
+
+    private fun sendProGated(command: AapCommand) = launch {
+        if (upgradeRepo.isPro()) {
+            sendInternal(command)
+        } else {
+            navTo(Nav.Main.Upgrade)
+        }
+    }
+
+    fun setAncMode(mode: AapSetting.AncMode.Value) = send(AapCommand.SetAncMode(mode))
+
+    fun setConversationalAwareness(enabled: Boolean) = send(AapCommand.SetConversationalAwareness(enabled))
+
+    fun setNcWithOneAirPod(enabled: Boolean) = send(AapCommand.SetNcWithOneAirPod(enabled))
+
+    fun setPersonalizedVolume(enabled: Boolean) = send(AapCommand.SetPersonalizedVolume(enabled))
+
+    fun setToneVolume(level: Int) = send(AapCommand.SetToneVolume(level))
+
+    fun setAdaptiveAudioNoise(level: Int) = send(AapCommand.SetAdaptiveAudioNoise(level))
+
+    fun setPressSpeed(value: AapSetting.PressSpeed.Value) = send(AapCommand.SetPressSpeed(value))
+
+    fun setPressHoldDuration(value: AapSetting.PressHoldDuration.Value) = send(AapCommand.SetPressHoldDuration(value))
+
+    fun setVolumeSwipe(enabled: Boolean) = send(AapCommand.SetVolumeSwipe(enabled))
+
+    fun setVolumeSwipeLength(value: AapSetting.VolumeSwipeLength.Value) = send(AapCommand.SetVolumeSwipeLength(value))
+
+    fun setEndCallMuteMic(
+        muteMic: AapSetting.EndCallMuteMic.MuteMicMode,
+        endCall: AapSetting.EndCallMuteMic.EndCallMode,
+    ) = send(AapCommand.SetEndCallMuteMic(muteMic, endCall))
+
+    fun setMicrophoneMode(mode: AapSetting.MicrophoneMode.Mode) = send(AapCommand.SetMicrophoneMode(mode))
+
+    fun setEarDetectionEnabled(enabled: Boolean) = send(AapCommand.SetEarDetectionEnabled(enabled))
+
+    fun setListeningModeCycle(modeMask: Int) = sendProGated(AapCommand.SetListeningModeCycle(modeMask))
+
+    fun setAllowOffOption(enabled: Boolean) = sendProGated(AapCommand.SetAllowOffOption(enabled))
+
+    fun setSleepDetection(enabled: Boolean) = sendProGated(AapCommand.SetSleepDetection(enabled))
+
+    fun setDeviceName(name: String) = launch {
+        val address = targetAddress.value ?: return@launch
+        sendInternal(AapCommand.SetDeviceName(name))
+
+        // Also try to update the Android-local bond alias so the new name shows in Android's
+        // Bluetooth settings too. The AAP rename only changes what the AirPods themselves report;
+        // Android's system display reads from the bond database and needs a separate update.
+        val bonded = try {
+            bluetoothManager.bondedDevices().first().firstOrNull { it.address == address }
+        } catch (e: Exception) {
+            log(TAG, WARN) { "bondedDevices() failed while renaming: ${e.message}" }
+            null
+        }
+        val aliasOk = bonded?.let { bluetoothManager.setDeviceAlias(it, name) } ?: false
+        if (!aliasOk) {
+            log(TAG, WARN) { "System bond alias rename failed for $address — user must rename in system settings or re-pair" }
+            events.emit(Event.SystemRenameUnavailable)
+        }
+    }
+
+    fun navToStemConfig() = launch {
+        if (upgradeRepo.isPro()) {
+            navTo(Nav.Main.StemActionConfig)
+        } else {
+            navTo(Nav.Main.Upgrade)
+        }
+    }
+
+    companion object {
+        private val TAG = logTag("DeviceSettings", "VM")
+    }
+}

app/src/main/java/eu/darken/capod/main/ui/overview/OverviewScreen.kt

@@ -9,9 +9,12 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.twotone.DevicesOther
+import androidx.compose.material.icons.twotone.Settings
+import androidx.compose.material.icons.twotone.Stars
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
@@ -24,10 +27,6 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.colorResource
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.twotone.DevicesOther
-import androidx.compose.material.icons.twotone.Settings
-import androidx.compose.material.icons.twotone.Stars
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.buildAnnotatedString
@@ -37,16 +36,17 @@ import androidx.core.net.toUri
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.compose.LifecycleEventEffect
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import eu.darken.capod.R
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import eu.darken.capod.common.error.ErrorEventHandler
 import eu.darken.capod.common.navigation.NavigationEventHandler
 import eu.darken.capod.common.permissions.Permission
 import eu.darken.capod.common.upgrade.UpgradeRepo
 import eu.darken.capod.main.ui.overview.cards.BluetoothDisabledCard
+import eu.darken.capod.main.ui.overview.cards.DeviceLimitUpgradeCard
 import eu.darken.capod.main.ui.overview.cards.DualPodsCard
 import eu.darken.capod.main.ui.overview.cards.MonitoringActiveCard
 import eu.darken.capod.main.ui.overview.cards.NoProfilesCard
@@ -54,9 +54,9 @@ import eu.darken.capod.main.ui.overview.cards.PermissionCard
 import eu.darken.capod.main.ui.overview.cards.SinglePodsCard
 import eu.darken.capod.main.ui.overview.cards.UnknownPodDeviceCard
 import eu.darken.capod.main.ui.overview.cards.UnmatchedDevicesCard
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.SinglePodDevice
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
 import java.time.Instant
 
 @Composable
@@ -129,6 +129,8 @@ fun OverviewScreenHost(vm: OverviewViewModel = hiltViewModel()) {
         onSettings = { vm.goToSettings() },
         onUpgrade = { vm.onUpgrade() },
         onToggleUnmatched = { vm.toggleUnmatchedDevices() },
+        onAncModeChange = { device, mode -> vm.setAncMode(device, mode) },
+        onDeviceSettings = { device -> vm.goToDeviceSettings(device) },
     )
 }
 
@@ -140,6 +142,8 @@ fun OverviewScreen(
     onSettings: () -> Unit,
     onUpgrade: () -> Unit,
     onToggleUnmatched: () -> Unit,
+    onAncModeChange: (PodDevice, AapSetting.AncMode.Value) -> Unit = { _, _ -> },
+    onDeviceSettings: (PodDevice) -> Unit = {},
 ) {
     Scaffold(
         topBar = {
@@ -218,13 +222,30 @@ fun OverviewScreen(
                 }
             }
 
-            // 4. Profiled device cards
+            // 4. Profiled device cards (limited to 1 for free users)
             if (!state.isScanBlocked && state.isBluetoothEnabled) {
                 items(
-                    items = state.profiledDevices,
-                    key = { it.identifier.hashCode() },
+                    items = state.visibleProfiledDevices,
+                    key = { it.identifier?.toString() ?: it.hashCode() },
                 ) { device ->
-                    PodDeviceCard(device = device, showDebug = state.isDebugMode, now = state.now)
+                    PodDeviceCard(
+                        device = device,
+                        showDebug = state.isDebugMode,
+                        now = state.now,
+                        onAncModeChange = { mode -> onAncModeChange(device, mode) },
+                        onDeviceSettings = { onDeviceSettings(device) },
+                    )
+                }
+
+                // 4b. Upgrade card when additional devices are hidden
+                if (state.hiddenProfiledDeviceCount > 0) {
+                    item(key = "device_limit_upgrade") {
+                        DeviceLimitUpgradeCard(
+                            hiddenCount = state.hiddenProfiledDeviceCount,
+                            upgradeType = state.upgradeInfo.type,
+                            onUpgrade = onUpgrade,
+                        )
+                    }
                 }
 
                 // 5. Monitoring active card
@@ -247,9 +268,15 @@ fun OverviewScreen(
                     if (state.showUnmatchedDevices) {
                         items(
                             items = state.unmatchedDevices,
-                            key = { "unmatched_${it.identifier.hashCode()}" },
+                            key = { "unmatched_${it.identifier?.toString() ?: it.hashCode()}" },
                         ) { device ->
-                            PodDeviceCard(device = device, showDebug = state.isDebugMode, now = state.now)
+                            PodDeviceCard(
+                                device = device,
+                                showDebug = state.isDebugMode,
+                                now = state.now,
+                                onAncModeChange = { mode -> onAncModeChange(device, mode) },
+                                onDeviceSettings = { onDeviceSettings(device) },
+                            )
                         }
                     }
                 }
@@ -259,11 +286,25 @@ fun OverviewScreen(
 }
 
 @Composable
-private fun PodDeviceCard(device: PodDevice, showDebug: Boolean, now: Instant) {
-    when (device) {
-        is DualPodDevice -> DualPodsCard(device = device, showDebug = showDebug, now = now)
-        is SinglePodDevice -> SinglePodsCard(device = device, showDebug = showDebug, now = now)
-        else -> UnknownPodDeviceCard(device = device, showDebug = showDebug, now = now)
+private fun PodDeviceCard(
+    device: PodDevice,
+    showDebug: Boolean,
+    now: Instant,
+    onAncModeChange: (AapSetting.AncMode.Value) -> Unit,
+    onDeviceSettings: (() -> Unit)? = null,
+) {
+    when {
+        device.hasDualPods -> DualPodsCard(
+            device = device, showDebug = showDebug, now = now,
+            onAncModeChange = onAncModeChange,
+            onDeviceSettings = onDeviceSettings,
+        )
+        device.model != PodModel.UNKNOWN -> SinglePodsCard(
+            device = device, showDebug = showDebug, now = now,
+            onAncModeChange = onAncModeChange,
+            onDeviceSettings = onDeviceSettings,
+        )
+        else -> UnknownPodDeviceCard(device = device, showDebug = showDebug)
     }
 }
 
@@ -275,15 +316,15 @@ private fun OverviewScreenWithDevicesPreview() = PreviewWrapper {
             now = Instant.now(),
             permissions = emptySet(),
             devices = listOf(
-                MockPodDataProvider.airPodsProMixed(),
-                MockPodDataProvider.airPodsMax(),
-                MockPodDataProvider.unknownDevice(),
+                MockPodDataProvider.dualPodMonitoredMixed(),
+                MockPodDataProvider.singlePodMonitored(),
+                MockPodDataProvider.unknownMonitored(),
             ),
             isDebugMode = false,
             isBluetoothEnabled = true,
             profiles = listOf(
-                MockPodDataProvider.profile("My AirPods Pro", PodDevice.Model.AIRPODS_PRO2),
-                MockPodDataProvider.profile("AirPods Max", PodDevice.Model.AIRPODS_MAX),
+                MockPodDataProvider.profile("My AirPods Pro", PodModel.AIRPODS_PRO2),
+                MockPodDataProvider.profile("AirPods Max", PodModel.AIRPODS_MAX),
             ),
             upgradeInfo = MockPodDataProvider.fossInfo(),
             showUnmatchedDevices = false,
@@ -306,7 +347,7 @@ private fun OverviewScreenEmptyPreview() = PreviewWrapper {
             devices = emptyList(),
             isDebugMode = false,
             isBluetoothEnabled = true,
-            profiles = listOf(MockPodDataProvider.profile("My AirPods", PodDevice.Model.AIRPODS_PRO2)),
+            profiles = listOf(MockPodDataProvider.profile("My AirPods", PodModel.AIRPODS_PRO2)),
             upgradeInfo = MockPodDataProvider.fossInfo(),
             showUnmatchedDevices = false,
         ),
@@ -350,7 +391,7 @@ private fun OverviewScreenBluetoothOffPreview() = PreviewWrapper {
             devices = emptyList(),
             isDebugMode = false,
             isBluetoothEnabled = false,
-            profiles = listOf(MockPodDataProvider.profile("My AirPods", PodDevice.Model.AIRPODS_PRO2)),
+            profiles = listOf(MockPodDataProvider.profile("My AirPods", PodModel.AIRPODS_PRO2)),
             upgradeInfo = MockPodDataProvider.fossInfo(isPro = true),
             showUnmatchedDevices = false,
         ),

app/src/main/java/eu/darken/capod/main/ui/overview/OverviewViewModel.kt

@@ -3,12 +3,12 @@ package eu.darken.capod.main.ui.overview
 import dagger.hilt.android.lifecycle.HiltViewModel
 import eu.darken.capod.common.bluetooth.BluetoothManager2
 import eu.darken.capod.common.coroutine.DispatcherProvider
+import eu.darken.capod.common.datastore.valueBlocking
 import eu.darken.capod.common.debug.DebugSettings
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.flow.SingleEventFlow
 import eu.darken.capod.common.flow.combine
-
 import eu.darken.capod.common.flow.throttleLatest
 import eu.darken.capod.common.navigation.Nav
 import eu.darken.capod.common.permissions.Permission
@@ -17,12 +17,14 @@ import eu.darken.capod.common.upgrade.UpgradeRepo
 import eu.darken.capod.main.core.GeneralSettings
 import eu.darken.capod.main.core.MonitorMode
 import eu.darken.capod.main.core.PermissionTool
-import eu.darken.capod.monitor.core.PodMonitor
+import eu.darken.capod.monitor.core.DeviceMonitor
+import eu.darken.capod.monitor.core.PodDevice
 import eu.darken.capod.monitor.core.worker.MonitorControl
-import eu.darken.capod.pods.core.PodDevice
+import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
 import eu.darken.capod.profiles.core.DeviceProfile
 import eu.darken.capod.profiles.core.DeviceProfilesRepo
-import java.time.Instant
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.catch
@@ -33,20 +35,21 @@ import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.withTimeoutOrNull
+import java.time.Instant
 import javax.inject.Inject
-import eu.darken.capod.common.datastore.valueBlocking
 
 @HiltViewModel
 class OverviewViewModel @Inject constructor(
     dispatcherProvider: DispatcherProvider,
     private val monitorControl: MonitorControl,
-    private val podMonitor: PodMonitor,
+    private val deviceMonitor: DeviceMonitor,
     private val permissionTool: PermissionTool,
     private val generalSettings: GeneralSettings,
     debugSettings: DebugSettings,
     private val upgradeRepo: UpgradeRepo,
     private val bluetoothManager: BluetoothManager2,
     private val profilesRepo: DeviceProfilesRepo,
+    private val aapManager: AapConnectionManager,
 ) : ViewModel4(dispatcherProvider) {
 
     val requestPermissionEvent = SingleEventFlow<Permission>()
@@ -71,6 +74,7 @@ class OverviewViewModel @Inject constructor(
                         false
                     }
                 }
+
                 MonitorMode.ALWAYS -> true
             }
             if (shouldStart) {
@@ -92,7 +96,7 @@ class OverviewViewModel @Inject constructor(
             if (permissions.isNotEmpty()) {
                 return@flatMapLatest flowOf(emptyList())
             }
-            podMonitor.devices
+            deviceMonitor.devices
         }
         .catch { errorEvents.emitBlocking(it) }
         .throttleLatest(1000)
@@ -130,8 +134,11 @@ class OverviewViewModel @Inject constructor(
         val showUnmatchedDevices: Boolean,
     ) {
         val isScanBlocked: Boolean get() = permissions.any { it.isScanBlocking }
-        val profiledDevices: List<PodDevice> get() = devices.filter { it.meta.profile != null }
-        val unmatchedDevices: List<PodDevice> get() = devices.filter { it.meta.profile == null }
+        val profiledDevices: List<PodDevice> get() = devices.filter { it.profileId != null }
+        val visibleProfiledDevices: List<PodDevice>
+            get() = if (upgradeInfo.isPro) profiledDevices else profiledDevices.take(FREE_DEVICE_LIMIT)
+        val hiddenProfiledDeviceCount: Int get() = profiledDevices.size - visibleProfiledDevices.size
+        val unmatchedDevices: List<PodDevice> get() = devices.filter { it.profileId == null }
     }
 
     fun onPermissionResult(@Suppress("UNUSED_PARAMETER") granted: Boolean) {
@@ -146,6 +153,11 @@ class OverviewViewModel @Inject constructor(
         navTo(Nav.Main.DeviceManager)
     }
 
+    fun goToDeviceSettings(device: PodDevice) {
+        val address = device.address ?: return
+        navTo(Nav.Main.DeviceSettings(address))
+    }
+
     fun onUpgrade() {
         navTo(Nav.Main.Upgrade)
     }
@@ -158,7 +170,20 @@ class OverviewViewModel @Inject constructor(
         requestPermissionEvent.tryEmit(permission)
     }
 
+    fun setAncMode(device: PodDevice, mode: AapSetting.AncMode.Value) {
+        val address = device.address ?: return
+        launch {
+            try {
+                aapManager.sendCommand(address, AapCommand.SetAncMode(mode))
+                log(TAG) { "ANC mode set to $mode for $address" }
+            } catch (e: Exception) {
+                log(TAG) { "Failed to set ANC mode: ${e.message}" }
+            }
+        }
+    }
+
     companion object {
+        private const val FREE_DEVICE_LIMIT = 1
         private val TAG = logTag("Overview", "VM")
     }
 }

app/src/main/java/eu/darken/capod/main/ui/overview/cards/DeviceLimitUpgradeCard.kt

@@ -0,0 +1,94 @@
+package eu.darken.capod.main.ui.overview.cards
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.twotone.Stars
+import androidx.compose.material3.Button
+import androidx.compose.material3.Card
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.pluralStringResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import eu.darken.capod.R
+import eu.darken.capod.common.compose.Preview2
+import eu.darken.capod.common.compose.PreviewWrapper
+import eu.darken.capod.common.upgrade.UpgradeRepo
+
+@Composable
+fun DeviceLimitUpgradeCard(
+    hiddenCount: Int,
+    upgradeType: UpgradeRepo.Type,
+    onUpgrade: () -> Unit,
+) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(8.dp),
+    ) {
+        Column(
+            modifier = Modifier.padding(16.dp),
+        ) {
+            Text(
+                text = pluralStringResource(R.plurals.overview_more_devices_upgrade, hiddenCount, hiddenCount),
+                style = MaterialTheme.typography.titleMedium,
+            )
+
+            Spacer(modifier = Modifier.height(4.dp))
+
+            Text(
+                text = stringResource(R.string.upgrade_capod_description),
+                style = MaterialTheme.typography.bodyMedium,
+            )
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Button(
+                onClick = onUpgrade,
+                modifier = Modifier.align(Alignment.End),
+            ) {
+                Icon(
+                    imageVector = Icons.TwoTone.Stars,
+                    contentDescription = null,
+                    modifier = Modifier.padding(end = 8.dp),
+                )
+                Text(
+                    text = stringResource(
+                        when (upgradeType) {
+                            UpgradeRepo.Type.FOSS -> R.string.general_donate_action
+                            UpgradeRepo.Type.GPLAY -> R.string.general_upgrade_action
+                        }
+                    ),
+                )
+            }
+        }
+    }
+}
+
+@Preview2
+@Composable
+private fun DeviceLimitUpgradeCardGplayPreview() = PreviewWrapper {
+    DeviceLimitUpgradeCard(
+        hiddenCount = 2,
+        upgradeType = UpgradeRepo.Type.GPLAY,
+        onUpgrade = {},
+    )
+}
+
+@Preview2
+@Composable
+private fun DeviceLimitUpgradeCardFossPreview() = PreviewWrapper {
+    DeviceLimitUpgradeCard(
+        hiddenCount = 1,
+        upgradeType = UpgradeRepo.Type.FOSS,
+        onUpgrade = {},
+    )
+}

app/src/main/java/eu/darken/capod/main/ui/overview/cards/DualPodsCard.kt

@@ -18,15 +18,15 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.outlined.Key
 import androidx.compose.material.icons.twotone.BatteryChargingFull
 import androidx.compose.material.icons.twotone.GridView
-import androidx.compose.material.icons.twotone.Key
+import androidx.compose.material.icons.twotone.Tune
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ElevatedCard
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
@@ -34,6 +34,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
 import androidx.compose.ui.graphics.StrokeCap
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
@@ -44,30 +45,24 @@ import eu.darken.capod.R
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.HasCase
-import eu.darken.capod.pods.core.HasChargeDetectionDual
-import eu.darken.capod.pods.core.HasDualMicrophone
-import eu.darken.capod.pods.core.HasEarDetectionDual
-import eu.darken.capod.pods.core.HasPodStyle
-import eu.darken.capod.pods.core.HasStateDetection
-import eu.darken.capod.pods.core.apple.ApplePods
-import eu.darken.capod.pods.core.apple.DualApplePods
-import eu.darken.capod.pods.core.apple.DualApplePods.LidState
-import eu.darken.capod.pods.core.firstSeenFormatted
-import eu.darken.capod.pods.core.formatBatteryPercent
-import eu.darken.capod.pods.core.toBatteryFloat
-import eu.darken.capod.pods.core.toBatteryOrNull
-import eu.darken.capod.pods.core.getSignalQuality
-import eu.darken.capod.pods.core.lastSeenFormatted
-import java.time.Duration
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.monitor.core.cachedBatteryFormatted
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import eu.darken.capod.pods.core.apple.ble.devices.DualApplePods
+import eu.darken.capod.pods.core.apple.ble.devices.DualApplePods.LidState
+import eu.darken.capod.pods.core.apple.ble.devices.HasPodStyle
+import eu.darken.capod.pods.core.apple.ble.formatBatteryPercent
+import eu.darken.capod.pods.core.apple.ble.toBatteryFloat
+import eu.darken.capod.pods.core.apple.ble.toBatteryOrNull
 import java.time.Instant
 
 @Composable
 fun DualPodsCard(
-    device: DualPodDevice,
+    device: PodDevice,
     showDebug: Boolean,
     now: Instant,
+    onAncModeChange: ((AapSetting.AncMode.Value) -> Unit)? = null,
+    onDeviceSettings: (() -> Unit)? = null,
 ) {
     val context = LocalContext.current
 
@@ -89,73 +84,79 @@ fun DualPodsCard(
                 Image(
                     painter = painterResource(device.iconRes),
                     contentDescription = null,
-                    modifier = Modifier.size(48.dp),
+                    modifier = Modifier.size(44.dp),
                 )
 
-                Spacer(modifier = Modifier.width(12.dp))
+                Spacer(modifier = Modifier.width(8.dp))
 
                 Column(modifier = Modifier.weight(1f)) {
-                    Row(verticalAlignment = Alignment.CenterVertically) {
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
                         Text(
-                            text = device.meta.profile?.label ?: "?",
+                            text = device.label ?: "?",
                             style = MaterialTheme.typography.titleMedium,
                             maxLines = 1,
                             overflow = TextOverflow.Ellipsis,
+                            modifier = Modifier.weight(1f, fill = false),
+                        )
+                        SignalIndicator(
+                            signalQuality = device.rssiQuality,
+                            isLive = device.isLive,
+                            modifier = Modifier.padding(start = 6.dp),
                         )
-                        if (device is ApplePods && device.meta.isIRKMatch) {
-                            Spacer(modifier = Modifier.width(6.dp))
-                            Icon(
-                                imageVector = if (device.payload.private != null) Icons.TwoTone.Key else Icons.Outlined.Key,
-                                contentDescription = null,
-                                modifier = Modifier.size(14.dp),
-                                tint = MaterialTheme.colorScheme.onSurfaceVariant,
-                            )
-                        }
                     }
                     val deviceLabel = buildString {
                         append(device.getLabel(context))
-                        if (device is HasPodStyle && showDebug) {
-                            append(" (${device.podStyle.getColor(context)})")
+                        val podStyle = device.ble as? HasPodStyle
+                        if (podStyle != null && showDebug) {
+                            append(" (${podStyle.podStyle.getColor(context)})")
                         }
-                        if (device is DualApplePods && showDebug) {
-                            append(" [${device.primaryPod.name}]")
+                        val dualApple = device.ble as? DualApplePods
+                        if (dualApple != null && showDebug) {
+                            append(" [${dualApple.primaryPod.name}]")
                         }
                     }
-                    Text(
-                        text = deviceLabel,
-                        style = MaterialTheme.typography.bodySmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        maxLines = 1,
-                        overflow = TextOverflow.Ellipsis,
-                    )
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
+                        Text(
+                            text = deviceLabel,
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
+                            modifier = Modifier.weight(1f, fill = false),
+                        )
+                        DeviceConnectionBadge(
+                            state = device.connectionState,
+                            modifier = Modifier.padding(start = 6.dp),
+                        )
+                    }
                 }
 
-                SignalBadge(signalText = device.getSignalQuality(context))
-            }
-
-            Spacer(modifier = Modifier.height(4.dp))
-
-            // Timestamps
-            Text(
-                text = stringResource(R.string.last_seen_x, device.lastSeenFormatted(now)),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-            if (Duration.between(device.seenFirstAt, device.seenLastAt).toMinutes() >= 1) {
-                Text(
-                    text = stringResource(R.string.first_seen_x, device.firstSeenFormatted(now)),
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
+                if (device.address != null && onDeviceSettings != null) {
+                    IconButton(onClick = onDeviceSettings) {
+                        Icon(
+                            imageVector = Icons.TwoTone.Tune,
+                            contentDescription = stringResource(R.string.device_settings_open_cd),
+                            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                }
             }
 
             Spacer(modifier = Modifier.height(16.dp))
 
             // Circular battery gauges side by side
             Surface(
-                modifier = Modifier.fillMaxWidth(),
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .then(if (!device.isLive) Modifier.alpha(0.7f) else Modifier),
                 shape = RoundedCornerShape(12.dp),
-                tonalElevation = 1.dp,
+                tonalElevation = 4.dp,
             ) {
                 Column(
                     modifier = Modifier.padding(16.dp),
@@ -166,31 +167,31 @@ fun DualPodsCard(
                     ) {
                         PodGauge(
                             iconRes = device.leftPodIcon,
-                            batteryPercent = device.batteryLeftPodPercent.toBatteryFloat(),
-                            isCharging = (device as? HasChargeDetectionDual)?.isLeftPodCharging ?: false,
-                            isInEar = (device as? HasEarDetectionDual)?.isLeftPodInEar ?: false,
-                            showEarDetection = device is HasEarDetectionDual,
-                            isMicrophone = (device as? HasDualMicrophone)?.isLeftPodMicrophone ?: false,
-                            showMicrophone = device is HasDualMicrophone,
+                            batteryPercent = device.batteryLeft.toBatteryFloat(),
+                            isCharging = device.isLeftPodCharging ?: false,
+                            isInEar = device.isLeftInEar ?: false,
+                            showEarDetection = device.hasEarDetection && device.hasDualPods,
+                            isMicrophone = device.isLeftPodMicrophone ?: false,
+                            showMicrophone = device.hasDualMicrophone,
                             modifier = Modifier.weight(1f),
                         )
 
                         PodGauge(
                             iconRes = device.rightPodIcon,
-                            batteryPercent = device.batteryRightPodPercent.toBatteryFloat(),
-                            isCharging = (device as? HasChargeDetectionDual)?.isRightPodCharging ?: false,
-                            isInEar = (device as? HasEarDetectionDual)?.isRightPodInEar ?: false,
-                            showEarDetection = device is HasEarDetectionDual,
-                            isMicrophone = (device as? HasDualMicrophone)?.isRightPodMicrophone ?: false,
-                            showMicrophone = device is HasDualMicrophone,
+                            batteryPercent = device.batteryRight.toBatteryFloat(),
+                            isCharging = device.isRightPodCharging ?: false,
+                            isInEar = device.isRightInEar ?: false,
+                            showEarDetection = device.hasEarDetection && device.hasDualPods,
+                            isMicrophone = device.isRightPodMicrophone ?: false,
+                            showMicrophone = device.hasDualMicrophone,
                             modifier = Modifier.weight(1f),
                         )
                     }
 
                     // Case row
-                    if (device is HasCase) {
+                    if (device.hasCase) {
                         HorizontalDivider(
-                            modifier = Modifier.padding(vertical = 12.dp),
+                            modifier = Modifier.padding(vertical = 8.dp),
                             color = MaterialTheme.colorScheme.outline.copy(alpha = 0.3f),
                         )
 
@@ -199,13 +200,37 @@ fun DualPodsCard(
                 }
             }
 
-            // Connection state
-            if (device is HasStateDetection) {
-                Spacer(modifier = Modifier.height(8.dp))
+            // Cached battery indicator
+            if (device.isBatteryCached && !device.isAapReady) {
+                Spacer(modifier = Modifier.height(4.dp))
                 Text(
-                    text = device.state.getLabel(context),
+                    text = stringResource(R.string.battery_cached_label, device.cachedBatteryFormatted(now)),
                     style = MaterialTheme.typography.bodySmall,
                     color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.align(Alignment.End),
+                )
+            }
+
+            // ANC mode selector
+            val ancMode = device.ancMode
+            if (device.isAapConnected && device.hasAncControl && ancMode != null) {
+                Spacer(modifier = Modifier.height(8.dp))
+                val cycleMask = (device.listeningModeCycle?.modeMask ?: 0x0E)
+                val cycleBits = mapOf(
+                    AapSetting.AncMode.Value.OFF to 0x01,
+                    AapSetting.AncMode.Value.ON to 0x02,
+                    AapSetting.AncMode.Value.TRANSPARENCY to 0x04,
+                    AapSetting.AncMode.Value.ADAPTIVE to 0x08,
+                )
+                val visibleModes = ancMode.supported.filter { mode ->
+                    val bit = cycleBits[mode] ?: return@filter true
+                    (cycleMask and bit) != 0
+                }
+                AncModeSelector(
+                    currentMode = ancMode.current,
+                    supportedModes = visibleModes,
+                    onModeSelected = { onAncModeChange?.invoke(it) },
+                    pendingMode = device.pendingAncMode,
                 )
             }
 
@@ -250,12 +275,12 @@ private fun PodGauge(
         // Ring with icon inside
         Box(
             contentAlignment = Alignment.Center,
-            modifier = Modifier.size(80.dp),
+            modifier = Modifier.size(68.dp),
         ) {
             // Track ring
             CircularProgressIndicator(
                 progress = { 1f },
-                modifier = Modifier.size(80.dp),
+                modifier = Modifier.size(68.dp),
                 color = MaterialTheme.colorScheme.surfaceVariant,
                 strokeWidth = 6.dp,
                 trackColor = MaterialTheme.colorScheme.surfaceVariant,
@@ -266,7 +291,7 @@ private fun PodGauge(
             if (clamped >= 0f) {
                 CircularProgressIndicator(
                     progress = { animatedProgress },
-                    modifier = Modifier.size(80.dp),
+                    modifier = Modifier.size(68.dp),
                     color = ringColor,
                     strokeWidth = 6.dp,
                     trackColor = MaterialTheme.colorScheme.surfaceVariant,
@@ -314,7 +339,7 @@ private fun PodGauge(
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
 private fun CaseRow(
-    device: HasCase,
+    device: PodDevice,
 ) {
     val context = LocalContext.current
 
@@ -331,13 +356,13 @@ private fun CaseRow(
         Spacer(modifier = Modifier.width(8.dp))
 
         Text(
-            text = formatBatteryPercent(context, device.batteryCasePercent),
+            text = formatBatteryPercent(context, device.batteryCase),
             style = MaterialTheme.typography.bodyMedium,
             modifier = Modifier.padding(end = 8.dp),
         )
 
         BatteryCapsule(
-            percent = device.batteryCasePercent.toBatteryFloat(),
+            percent = device.batteryCase.toBatteryFloat(),
             modifier = Modifier
                 .weight(1f)
                 .height(8.dp),
@@ -349,25 +374,23 @@ private fun CaseRow(
             horizontalArrangement = Arrangement.spacedBy(4.dp),
             verticalArrangement = Arrangement.spacedBy(4.dp),
         ) {
-            if (device.isCaseCharging) {
+            if (device.isCaseCharging == true) {
                 StatusChip(
                     icon = Icons.TwoTone.BatteryChargingFull,
                     label = stringResource(R.string.pods_charging_label),
                 )
             }
 
-            if (device is DualApplePods) {
-                val lidState = device.caseLidState
-                if (lidState == LidState.OPEN || lidState == LidState.CLOSED) {
-                    StatusChip(
-                        icon = Icons.TwoTone.GridView,
-                        label = when (lidState) {
-                            LidState.OPEN -> stringResource(R.string.pods_case_status_open_label)
-                            LidState.CLOSED -> stringResource(R.string.pods_case_status_closed_label)
-                            else -> ""
-                        },
-                    )
-                }
+            val lidState = device.caseLidState
+            if (lidState == LidState.OPEN || lidState == LidState.CLOSED) {
+                StatusChip(
+                    icon = Icons.TwoTone.GridView,
+                    label = when (lidState) {
+                        LidState.OPEN -> stringResource(R.string.pods_case_status_open_label)
+                        LidState.CLOSED -> stringResource(R.string.pods_case_status_closed_label)
+                        else -> ""
+                    },
+                )
             }
         }
     }
@@ -375,42 +398,31 @@ private fun CaseRow(
 
 @Preview2
 @Composable
-private fun DualPodsCardFullChargePreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.airPodsProFullCharge(), showDebug = false, now = Instant.now())
+private fun DualPodsCardFullPreview() = PreviewWrapper {
+    DualPodsCard(
+        device = MockPodDataProvider.dualPodMonitoredWithAap(),
+        showDebug = false,
+        now = Instant.now(),
+        onDeviceSettings = {},
+    )
 }
 
 @Preview2
 @Composable
-private fun DualPodsCardMixedBatteryPreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.airPodsProMixed(), showDebug = false, now = Instant.now())
+private fun DualPodsCardMinimalPreview() = PreviewWrapper {
+    DualPodsCard(
+        device = MockPodDataProvider.dualPodMonitored(),
+        showDebug = false,
+        now = Instant.now(),
+    )
 }
 
 @Preview2
 @Composable
-private fun DualPodsCardLowBatteryPreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.airPodsProLowBattery(), showDebug = false, now = Instant.now())
-}
-
-@Preview2
-@Composable
-private fun DualPodsCardInCasePreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.airPodsProInCase(), showDebug = false, now = Instant.now())
-}
-
-@Preview2
-@Composable
-private fun DualPodsCardDebugPreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.airPodsProMixed(), showDebug = true, now = Instant.now())
-}
-
-@Preview2
-@Composable
-private fun DualPodsCardNoCasePreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.powerBeatsPro(), showDebug = false, now = Instant.now())
-}
-
-@Preview2
-@Composable
-private fun DualPodsCardMicrophonePreview() = PreviewWrapper {
-    DualPodsCard(device = MockPodDataProvider.airPodsGen1Wearing(), showDebug = false, now = Instant.now())
+private fun DualPodsCardCachedPreview() = PreviewWrapper {
+    DualPodsCard(
+        device = MockPodDataProvider.dualPodCachedOnly(),
+        showDebug = false,
+        now = Instant.now(),
+    )
 }

app/src/main/java/eu/darken/capod/main/ui/overview/cards/PodCardComponents.kt

@@ -1,9 +1,11 @@
 package eu.darken.capod.main.ui.overview.cards
 
+import androidx.annotation.VisibleForTesting
 import androidx.compose.animation.animateContentSize
 import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.animation.core.tween
+import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -20,21 +22,42 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Key
 import androidx.compose.material.icons.twotone.BatteryChargingFull
+import androidx.compose.material.icons.twotone.Bluetooth
 import androidx.compose.material.icons.twotone.Hearing
 import androidx.compose.material.icons.twotone.KeyboardVoice
+import androidx.compose.material.icons.twotone.LinkOff
+import androidx.compose.material.icons.twotone.Lock
 import androidx.compose.material.icons.twotone.SettingsInputAntenna
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.SegmentedButton
+import androidx.compose.material3.SegmentedButtonDefaults
+import androidx.compose.material3.SingleChoiceSegmentedButtonRow
 import androidx.compose.material3.Surface
+import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.geometry.CornerRadius
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.contentDescription
+import androidx.compose.ui.semantics.semantics
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
+import eu.darken.capod.R
+import eu.darken.capod.common.compose.Preview2
+import eu.darken.capod.common.compose.PreviewWrapper
+import eu.darken.capod.monitor.core.BleKeyState
+import eu.darken.capod.monitor.core.ConnectionState
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
 
 private val CapsuleShape = RoundedCornerShape(6.dp)
 
@@ -144,11 +167,89 @@ fun StatusChipRow(
     }
 }
 
+@VisibleForTesting
+internal enum class SignalLevel { DISCONNECTED, BARS_0, BARS_1, BARS_2, BARS_3, BARS_4 }
+
+@VisibleForTesting
+internal fun signalLevelOf(signalQuality: Float, isLive: Boolean): SignalLevel {
+    if (!isLive) return SignalLevel.DISCONNECTED
+    if (!signalQuality.isFinite()) return SignalLevel.BARS_0
+    val q = signalQuality.coerceIn(0f, 1f)
+    return when {
+        q >= 0.80f -> SignalLevel.BARS_4
+        q >= 0.60f -> SignalLevel.BARS_3
+        q >= 0.40f -> SignalLevel.BARS_2
+        q >= 0.20f -> SignalLevel.BARS_1
+        else -> SignalLevel.BARS_0
+    }
+}
+
 @Composable
-fun SignalBadge(
-    signalText: String,
+fun SignalIndicator(
+    signalQuality: Float,
+    isLive: Boolean,
     modifier: Modifier = Modifier,
 ) {
+    val level = signalLevelOf(signalQuality, isLive)
+    val description = when (level) {
+        SignalLevel.DISCONNECTED -> stringResource(R.string.signal_indicator_disconnected_cd)
+        SignalLevel.BARS_0 -> stringResource(R.string.signal_indicator_bars_cd, 0)
+        SignalLevel.BARS_1 -> stringResource(R.string.signal_indicator_bars_cd, 1)
+        SignalLevel.BARS_2 -> stringResource(R.string.signal_indicator_bars_cd, 2)
+        SignalLevel.BARS_3 -> stringResource(R.string.signal_indicator_bars_cd, 3)
+        SignalLevel.BARS_4 -> stringResource(R.string.signal_indicator_bars_cd, 4)
+    }
+    val tint = MaterialTheme.colorScheme.onSurfaceVariant
+    val rootModifier = modifier
+        .size(12.dp)
+        .semantics(mergeDescendants = true) { contentDescription = description }
+
+    if (level == SignalLevel.DISCONNECTED) {
+        Icon(
+            imageVector = Icons.TwoTone.LinkOff,
+            contentDescription = null,
+            modifier = rootModifier,
+            tint = tint,
+        )
+        return
+    }
+
+    val activeBars = when (level) {
+        SignalLevel.BARS_0 -> 0
+        SignalLevel.BARS_1 -> 1
+        SignalLevel.BARS_2 -> 2
+        SignalLevel.BARS_3 -> 3
+        SignalLevel.BARS_4 -> 4
+        SignalLevel.DISCONNECTED -> 0 // unreachable; handled above
+    }
+    val inactiveColor = tint.copy(alpha = 0.3f)
+    Canvas(modifier = rootModifier) {
+        val barCount = 4
+        val gapWidth = size.width * 0.12f
+        val totalGap = gapWidth * (barCount - 1)
+        val barWidth = (size.width - totalGap) / barCount
+        val corner = CornerRadius(barWidth * 0.4f, barWidth * 0.4f)
+        for (i in 0 until barCount) {
+            val heightFraction = (i + 1).toFloat() / barCount
+            val barHeight = size.height * heightFraction
+            val x = i * (barWidth + gapWidth)
+            val y = size.height - barHeight
+            drawRoundRect(
+                color = if (i < activeBars) tint else inactiveColor,
+                topLeft = Offset(x, y),
+                size = Size(barWidth, barHeight),
+                cornerRadius = corner,
+            )
+        }
+    }
+}
+
+@Composable
+fun DeviceConnectionBadge(
+    state: ConnectionState,
+    modifier: Modifier = Modifier,
+) {
+    if (!state.hasBleData && state.bleKeyState == BleKeyState.NONE && !state.isAapConnected) return
     Surface(
         modifier = modifier,
         shape = RoundedCornerShape(8.dp),
@@ -157,19 +258,40 @@ fun SignalBadge(
         Row(
             modifier = Modifier.padding(horizontal = 6.dp, vertical = 2.dp),
             verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(3.dp),
         ) {
-            Icon(
-                imageVector = Icons.TwoTone.SettingsInputAntenna,
-                contentDescription = null,
-                modifier = Modifier.size(12.dp),
-                tint = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-            Spacer(modifier = Modifier.width(3.dp))
-            Text(
-                text = signalText,
-                style = MaterialTheme.typography.labelSmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
+            if (state.hasBleData) {
+                Icon(
+                    imageVector = Icons.TwoTone.SettingsInputAntenna,
+                    contentDescription = stringResource(R.string.signal_badge_ble_cd),
+                    modifier = Modifier.size(12.dp),
+                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+            if (state.bleKeyState != BleKeyState.NONE) {
+                Icon(
+                    imageVector = Icons.Outlined.Key,
+                    contentDescription = stringResource(R.string.signal_badge_key_irk_cd),
+                    modifier = Modifier.size(12.dp),
+                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+            if (state.bleKeyState == BleKeyState.IRK_AND_ENCRYPTED) {
+                Icon(
+                    imageVector = Icons.TwoTone.Lock,
+                    contentDescription = stringResource(R.string.signal_badge_key_encrypted_cd),
+                    modifier = Modifier.size(12.dp),
+                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+            if (state.isAapConnected) {
+                Icon(
+                    imageVector = Icons.TwoTone.Bluetooth,
+                    contentDescription = stringResource(R.string.signal_badge_aap_cd),
+                    modifier = Modifier.size(12.dp),
+                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
         }
     }
 }
@@ -193,3 +315,149 @@ fun DebugSection(
         )
     }
 }
+
+@Composable
+fun AncModeSelector(
+    currentMode: AapSetting.AncMode.Value,
+    supportedModes: List<AapSetting.AncMode.Value>,
+    onModeSelected: (AapSetting.AncMode.Value) -> Unit,
+    pendingMode: AapSetting.AncMode.Value? = null,
+    modifier: Modifier = Modifier,
+    enabled: Boolean = true,
+) {
+    val displayMode = pendingMode ?: currentMode
+    SingleChoiceSegmentedButtonRow(modifier = modifier.fillMaxWidth()) {
+        supportedModes.forEachIndexed { index, mode ->
+            SegmentedButton(
+                selected = mode == displayMode,
+                onClick = { onModeSelected(mode) },
+                enabled = enabled,
+                shape = SegmentedButtonDefaults.itemShape(index, supportedModes.size),
+                colors = if (pendingMode != null && mode == displayMode) {
+                    SegmentedButtonDefaults.colors(
+                        activeContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                        activeContentColor = MaterialTheme.colorScheme.onSecondaryContainer,
+                    )
+                } else {
+                    SegmentedButtonDefaults.colors()
+                },
+                label = {
+                    Text(
+                        text = when (mode) {
+                            AapSetting.AncMode.Value.OFF -> stringResource(R.string.anc_mode_off)
+                            AapSetting.AncMode.Value.ON -> stringResource(R.string.anc_mode_on)
+                            AapSetting.AncMode.Value.TRANSPARENCY -> stringResource(R.string.anc_mode_transparency)
+                            AapSetting.AncMode.Value.ADAPTIVE -> stringResource(R.string.anc_mode_adaptive)
+                        },
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis,
+                    )
+                },
+            )
+        }
+    }
+}
+
+@Composable
+fun ConversationAwarenessToggle(
+    enabled: Boolean,
+    onToggle: (Boolean) -> Unit,
+) {
+    Row(
+        modifier = Modifier.fillMaxWidth(),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Text(
+            text = stringResource(R.string.conversation_awareness_label),
+            style = MaterialTheme.typography.bodyMedium,
+            modifier = Modifier.weight(1f),
+        )
+        Switch(
+            checked = enabled,
+            onCheckedChange = onToggle,
+        )
+    }
+}
+
+@Preview2
+@Composable
+private fun DeviceConnectionBadgeAllIconsPreview() = PreviewWrapper {
+    DeviceConnectionBadge(
+        state = ConnectionState(
+            hasBleData = true,
+            bleKeyState = BleKeyState.IRK_AND_ENCRYPTED,
+            isAapConnected = true,
+            rssiQuality = 1f,
+        ),
+    )
+}
+
+@Preview2
+@Composable
+private fun DeviceConnectionBadgeBleOnlyPreview() = PreviewWrapper {
+    DeviceConnectionBadge(
+        state = ConnectionState(
+            hasBleData = true,
+            bleKeyState = BleKeyState.NONE,
+            isAapConnected = false,
+            rssiQuality = 0.7f,
+        ),
+    )
+}
+
+@Preview2
+@Composable
+private fun DeviceConnectionBadgeBleIrkPreview() = PreviewWrapper {
+    DeviceConnectionBadge(
+        state = ConnectionState(
+            hasBleData = true,
+            bleKeyState = BleKeyState.IRK_ONLY,
+            isAapConnected = false,
+            rssiQuality = 0.5f,
+        ),
+    )
+}
+
+@Preview2
+@Composable
+private fun DeviceConnectionBadgeAapOnlyPreview() = PreviewWrapper {
+    DeviceConnectionBadge(
+        state = ConnectionState(
+            hasBleData = false,
+            bleKeyState = BleKeyState.NONE,
+            isAapConnected = true,
+            rssiQuality = 0f,
+        ),
+    )
+}
+
+@Preview2
+@Composable
+private fun DeviceConnectionBadgeEmptyPreview() = PreviewWrapper {
+    DeviceConnectionBadge(
+        state = ConnectionState(
+            hasBleData = false,
+            bleKeyState = BleKeyState.NONE,
+            isAapConnected = false,
+            rssiQuality = 0f,
+        ),
+    )
+}
+
+@Preview2
+@Composable
+private fun SignalIndicatorPreviewsGroup() = PreviewWrapper {
+    Row(
+        horizontalArrangement = Arrangement.spacedBy(8.dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        SignalIndicator(signalQuality = 0.10f, isLive = true)
+        SignalIndicator(signalQuality = 0.35f, isLive = true)
+        SignalIndicator(signalQuality = 0.55f, isLive = true)
+        SignalIndicator(signalQuality = 0.75f, isLive = true)
+        SignalIndicator(signalQuality = 0.95f, isLive = true)
+        SignalIndicator(signalQuality = Float.NaN, isLive = true)
+        SignalIndicator(signalQuality = -0.3f, isLive = true)
+        SignalIndicator(signalQuality = 0.85f, isLive = false)
+    }
+}

app/src/main/java/eu/darken/capod/main/ui/overview/cards/SinglePodsCard.kt

@@ -21,9 +21,12 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.twotone.BatteryChargingFull
 import androidx.compose.material.icons.twotone.Hearing
+import androidx.compose.material.icons.twotone.Tune
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
@@ -31,6 +34,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
 import androidx.compose.ui.graphics.StrokeCap
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
@@ -41,26 +45,24 @@ import eu.darken.capod.R
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
-import eu.darken.capod.pods.core.HasChargeDetection
-import eu.darken.capod.pods.core.HasEarDetection
-import eu.darken.capod.pods.core.SinglePodDevice
-import eu.darken.capod.pods.core.firstSeenFormatted
-import eu.darken.capod.pods.core.formatBatteryPercent
-import eu.darken.capod.pods.core.getSignalQuality
-import eu.darken.capod.pods.core.lastSeenFormatted
-import java.time.Duration
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.monitor.core.cachedBatteryFormatted
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import eu.darken.capod.pods.core.apple.ble.formatBatteryPercent
 import java.time.Instant
 
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
 fun SinglePodsCard(
-    device: SinglePodDevice,
+    device: PodDevice,
     showDebug: Boolean,
     now: Instant,
+    onAncModeChange: ((AapSetting.AncMode.Value) -> Unit)? = null,
+    onDeviceSettings: (() -> Unit)? = null,
 ) {
     val context = LocalContext.current
 
-    val clamped = device.batteryHeadsetPercent?.coerceIn(0f, 1f)
+    val clamped = device.batteryHeadset?.coerceIn(0f, 1f)
     val animatedProgress by animateFloatAsState(
         targetValue = clamped ?: 0f,
         animationSpec = tween(600, easing = FastOutSlowInEasing),
@@ -92,53 +94,68 @@ fun SinglePodsCard(
                 Image(
                     painter = painterResource(device.iconRes),
                     contentDescription = null,
-                    modifier = Modifier.size(48.dp),
+                    modifier = Modifier.size(44.dp),
                 )
 
-                Spacer(modifier = Modifier.width(12.dp))
+                Spacer(modifier = Modifier.width(8.dp))
 
                 Column(modifier = Modifier.weight(1f)) {
-                    Text(
-                        text = device.meta.profile?.label ?: "?",
-                        style = MaterialTheme.typography.titleMedium,
-                        maxLines = 1,
-                        overflow = TextOverflow.Ellipsis,
-                    )
-                    Text(
-                        text = device.getLabel(context),
-                        style = MaterialTheme.typography.bodySmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        maxLines = 1,
-                        overflow = TextOverflow.Ellipsis,
-                    )
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
+                        Text(
+                            text = device.label ?: "?",
+                            style = MaterialTheme.typography.titleMedium,
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
+                            modifier = Modifier.weight(1f, fill = false),
+                        )
+                        SignalIndicator(
+                            signalQuality = device.rssiQuality,
+                            isLive = device.isLive,
+                            modifier = Modifier.padding(start = 6.dp),
+                        )
+                    }
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically,
+                    ) {
+                        Text(
+                            text = device.getLabel(context),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
+                            modifier = Modifier.weight(1f, fill = false),
+                        )
+                        DeviceConnectionBadge(
+                            state = device.connectionState,
+                            modifier = Modifier.padding(start = 6.dp),
+                        )
+                    }
                 }
 
-                SignalBadge(signalText = device.getSignalQuality(context))
+                if (device.address != null && onDeviceSettings != null) {
+                    IconButton(onClick = onDeviceSettings) {
+                        Icon(
+                            imageVector = Icons.TwoTone.Tune,
+                            contentDescription = stringResource(R.string.device_settings_open_cd),
+                            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                }
             }
 
-            Spacer(modifier = Modifier.height(4.dp))
-
-            // Timestamps
-            Text(
-                text = stringResource(R.string.last_seen_x, device.lastSeenFormatted(now)),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-            if (Duration.between(device.seenFirstAt, device.seenLastAt).toMinutes() >= 1) {
-                Text(
-                    text = stringResource(R.string.first_seen_x, device.firstSeenFormatted(now)),
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
-            }
-
-            Spacer(modifier = Modifier.height(16.dp))
+            Spacer(modifier = Modifier.height(12.dp))
 
             // Central gauge
             Surface(
-                modifier = Modifier.fillMaxWidth(),
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .then(if (!device.isLive) Modifier.alpha(0.7f) else Modifier),
                 shape = RoundedCornerShape(12.dp),
-                tonalElevation = 1.dp,
+                tonalElevation = 4.dp,
             ) {
                 Column(
                     modifier = Modifier
@@ -148,12 +165,12 @@ fun SinglePodsCard(
                 ) {
                     Box(
                         contentAlignment = Alignment.Center,
-                        modifier = Modifier.size(100.dp),
+                        modifier = Modifier.size(88.dp),
                     ) {
                         // Track ring
                         CircularProgressIndicator(
                             progress = { 1f },
-                            modifier = Modifier.size(100.dp),
+                            modifier = Modifier.size(88.dp),
                             color = MaterialTheme.colorScheme.surfaceVariant,
                             strokeWidth = 8.dp,
                             trackColor = MaterialTheme.colorScheme.surfaceVariant,
@@ -164,7 +181,7 @@ fun SinglePodsCard(
                         if (clamped != null) {
                             CircularProgressIndicator(
                                 progress = { animatedProgress },
-                                modifier = Modifier.size(100.dp),
+                                modifier = Modifier.size(88.dp),
                                 color = ringColor,
                                 strokeWidth = 8.dp,
                                 trackColor = MaterialTheme.colorScheme.surfaceVariant,
@@ -174,9 +191,9 @@ fun SinglePodsCard(
 
                         // Battery text inside ring
                         Text(
-                            text = formatBatteryPercent(context, device.batteryHeadsetPercent),
-                            style = MaterialTheme.typography.headlineMedium,
-                            color = if (device.batteryHeadsetPercent != null) {
+                            text = formatBatteryPercent(context, device.batteryHeadset),
+                            style = MaterialTheme.typography.headlineSmall,
+                            color = if (device.batteryHeadset != null) {
                                 MaterialTheme.colorScheme.onSurface
                             } else {
                                 MaterialTheme.colorScheme.onSurfaceVariant
@@ -192,13 +209,13 @@ fun SinglePodsCard(
                         horizontalArrangement = Arrangement.spacedBy(4.dp),
                         verticalArrangement = Arrangement.spacedBy(4.dp),
                     ) {
-                        if (device is HasChargeDetection && device.isHeadsetBeingCharged) {
+                        if (device.isHeadsetBeingCharged == true) {
                             StatusChip(
                                 icon = Icons.TwoTone.BatteryChargingFull,
                                 label = stringResource(R.string.pods_charging_label),
                             )
                         }
-                        if (device is HasEarDetection && device.isBeingWorn) {
+                        if (device.isBeingWorn == true) {
                             StatusChip(
                                 icon = Icons.TwoTone.Hearing,
                                 label = stringResource(R.string.pods_inear_label),
@@ -208,6 +225,40 @@ fun SinglePodsCard(
                 }
             }
 
+            // Cached battery indicator
+            if (device.isBatteryCached && !device.isAapReady) {
+                Spacer(modifier = Modifier.height(4.dp))
+                Text(
+                    text = stringResource(R.string.battery_cached_label, device.cachedBatteryFormatted(now)),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.align(Alignment.End),
+                )
+            }
+
+            // ANC mode selector
+            val ancMode = device.ancMode
+            if (device.isAapConnected && device.hasAncControl && ancMode != null) {
+                Spacer(modifier = Modifier.height(12.dp))
+                val cycleMask = (device.listeningModeCycle?.modeMask ?: 0x0E)
+                val cycleBits = mapOf(
+                    AapSetting.AncMode.Value.OFF to 0x01,
+                    AapSetting.AncMode.Value.ON to 0x02,
+                    AapSetting.AncMode.Value.TRANSPARENCY to 0x04,
+                    AapSetting.AncMode.Value.ADAPTIVE to 0x08,
+                )
+                val visibleModes = ancMode.supported.filter { mode ->
+                    val bit = cycleBits[mode] ?: return@filter true
+                    (cycleMask and bit) != 0
+                }
+                AncModeSelector(
+                    currentMode = ancMode.current,
+                    supportedModes = visibleModes,
+                    onModeSelected = { onAncModeChange?.invoke(it) },
+                    pendingMode = device.pendingAncMode,
+                )
+            }
+
             // Debug info
             if (showDebug) {
                 DebugSection(rawDataHex = device.rawDataHex)
@@ -218,18 +269,31 @@ fun SinglePodsCard(
 
 @Preview2
 @Composable
-private fun SinglePodsCardWearingPreview() = PreviewWrapper {
-    SinglePodsCard(device = MockPodDataProvider.airPodsMax(), showDebug = false, now = Instant.now())
+private fun SinglePodsCardFullPreview() = PreviewWrapper {
+    SinglePodsCard(
+        device = MockPodDataProvider.singlePodMonitoredWithAap(),
+        showDebug = false,
+        now = Instant.now(),
+        onDeviceSettings = {},
+    )
 }
 
 @Preview2
 @Composable
-private fun SinglePodsCardChargingPreview() = PreviewWrapper {
-    SinglePodsCard(device = MockPodDataProvider.airPodsMaxCharging(), showDebug = false, now = Instant.now())
+private fun SinglePodsCardMinimalPreview() = PreviewWrapper {
+    SinglePodsCard(
+        device = MockPodDataProvider.singlePodMonitored(),
+        showDebug = false,
+        now = Instant.now(),
+    )
 }
 
 @Preview2
 @Composable
-private fun SinglePodsCardDebugPreview() = PreviewWrapper {
-    SinglePodsCard(device = MockPodDataProvider.beatsSolo3(), showDebug = true, now = Instant.now())
+private fun SinglePodsCardCachedPreview() = PreviewWrapper {
+    SinglePodsCard(
+        device = MockPodDataProvider.singlePodCachedOnly(),
+        showDebug = false,
+        now = Instant.now(),
+    )
 }

app/src/main/java/eu/darken/capod/main/ui/overview/cards/UnknownPodDeviceCard.kt

@@ -6,12 +6,7 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.twotone.SettingsInputAntenna
 import androidx.compose.material3.Card
-import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -19,22 +14,19 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import eu.darken.capod.R
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.apple.ApplePods
-import eu.darken.capod.pods.core.getSignalQuality
-import eu.darken.capod.pods.core.lastSeenFormatted
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
-import java.time.Instant
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.pods.core.apple.ble.devices.ApplePods
 
 @Composable
 fun UnknownPodDeviceCard(
     device: PodDevice,
     showDebug: Boolean,
-    now: Instant,
 ) {
     val context = LocalContext.current
 
@@ -46,7 +38,7 @@ fun UnknownPodDeviceCard(
         Column(
             modifier = Modifier.padding(16.dp),
         ) {
-            // Header with signal in top-right
+            // Header: label + signal indicator (sits right after the text)
             Row(
                 verticalAlignment = Alignment.CenterVertically,
                 modifier = Modifier.fillMaxWidth(),
@@ -54,37 +46,24 @@ fun UnknownPodDeviceCard(
                 Text(
                     text = device.getLabel(context),
                     style = MaterialTheme.typography.titleMedium,
-                    modifier = Modifier.weight(1f),
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.weight(1f, fill = false),
                 )
-
-                Text(
-                    text = device.getSignalQuality(context),
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                )
-                Spacer(modifier = Modifier.width(4.dp))
-                Icon(
-                    imageVector = Icons.TwoTone.SettingsInputAntenna,
-                    contentDescription = null,
-                    modifier = Modifier.size(16.dp),
-                    tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                SignalIndicator(
+                    signalQuality = device.rssiQuality,
+                    isLive = device.isLive,
+                    modifier = Modifier.padding(start = 6.dp),
                 )
             }
 
-            Spacer(modifier = Modifier.height(4.dp))
-
-            Text(
-                text = stringResource(R.string.last_seen_x, device.lastSeenFormatted(now)),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-
             Spacer(modifier = Modifier.height(8.dp))
 
             Text(
-                text = when (device) {
-                    is ApplePods -> stringResource(R.string.pods_unknown_contact_dev)
-                    else -> stringResource(R.string.pods_unknown_label)
+                text = if (device.ble is ApplePods) {
+                    stringResource(R.string.pods_unknown_contact_dev)
+                } else {
+                    stringResource(R.string.pods_unknown_label)
                 },
                 style = MaterialTheme.typography.bodyMedium,
             )
@@ -110,11 +89,11 @@ fun UnknownPodDeviceCard(
 @Preview2
 @Composable
 private fun UnknownPodDeviceCardPreview() = PreviewWrapper {
-    UnknownPodDeviceCard(device = MockPodDataProvider.unknownDevice(), showDebug = false, now = Instant.now())
+    UnknownPodDeviceCard(device = MockPodDataProvider.unknownMonitored(), showDebug = false)
 }
 
 @Preview2
 @Composable
 private fun UnknownPodDeviceCardDebugPreview() = PreviewWrapper {
-    UnknownPodDeviceCard(device = MockPodDataProvider.unknownDevice(), showDebug = true, now = Instant.now())
+    UnknownPodDeviceCard(device = MockPodDataProvider.unknownMonitored(), showDebug = true)
 }

app/src/main/java/eu/darken/capod/main/ui/settings/acks/AcknowledgementsScreen.kt

@@ -86,6 +86,13 @@ fun AcknowledgementsScreen(
                     onClick = { onOpenUrl("https://github.com/steam3d/MagicPods-Windows") },
                 )
             }
+            item {
+                SettingsBaseItem(
+                    title = "LibrePods project",
+                    subtitle = "Thanks to Kavish Devar for all the reverse engineering work.",
+                    onClick = { onOpenUrl("https://github.com/kavishdevar/librepods") },
+                )
+            }
             item {
                 SettingsBaseItem(
                     title = "FuriousMAC",
@@ -124,6 +131,20 @@ fun AcknowledgementsScreen(
                     onClick = { onOpenUrl("https://iconduck.com/sets/zwicon-icon-set") },
                 )
             }
+            item {
+                SettingsBaseItem(
+                    title = "MagicPodsCore",
+                    subtitle = "Backend service for managing AirPods on Linux. (GPL-3.0)",
+                    onClick = { onOpenUrl("https://github.com/steam3d/MagicPodsCore") },
+                )
+            }
+            item {
+                SettingsBaseItem(
+                    title = "LibrePods",
+                    subtitle = "Unlocking AirPods features on non-Apple devices. (GPL-3.0)",
+                    onClick = { onOpenUrl("https://github.com/kavishdevar/librepods") },
+                )
+            }
             item {
                 SettingsBaseItem(
                     title = "Kotlin",

app/src/main/java/eu/darken/capod/main/ui/stemactions/StemActionConfigNavigation.kt

@@ -0,0 +1,28 @@
+package eu.darken.capod.main.ui.stemactions
+
+import androidx.navigation3.runtime.EntryProviderScope
+import androidx.navigation3.runtime.NavKey
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import dagger.multibindings.IntoSet
+import eu.darken.capod.common.navigation.Nav
+import eu.darken.capod.common.navigation.NavigationEntry
+import javax.inject.Inject
+
+class StemActionConfigNavigation @Inject constructor() : NavigationEntry {
+    override fun EntryProviderScope<NavKey>.setup() {
+        entry<Nav.Main.StemActionConfig> {
+            StemActionConfigScreenHost()
+        }
+    }
+
+    @Module
+    @InstallIn(SingletonComponent::class)
+    abstract class Mod {
+        @Binds
+        @IntoSet
+        abstract fun bind(entry: StemActionConfigNavigation): NavigationEntry
+    }
+}

app/src/main/java/eu/darken/capod/main/ui/stemactions/StemActionConfigScreen.kt

@@ -0,0 +1,289 @@
+package eu.darken.capod.main.ui.stemactions
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.twotone.ArrowBack
+import androidx.compose.material.icons.twotone.RestartAlt
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExposedDropdownMenuBox
+import androidx.compose.material3.ExposedDropdownMenuDefaults
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ExposedDropdownMenuAnchorType
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import eu.darken.capod.R
+import eu.darken.capod.common.navigation.NavigationEventHandler
+import eu.darken.capod.common.settings.SettingsCategoryHeader
+import eu.darken.capod.reaction.core.stem.StemAction
+
+@Composable
+fun StemActionConfigScreenHost(
+    vm: StemActionConfigViewModel = hiltViewModel(),
+) {
+    NavigationEventHandler(vm)
+
+    val state by vm.state.collectAsStateWithLifecycle(initialValue = null)
+    val currentState = state ?: return
+
+    StemActionConfigScreen(
+        state = currentState,
+        onNavigateUp = { vm.navUp() },
+        onReset = { vm.resetAll() },
+        onLeftSingle = { vm.setLeftSingle(it) },
+        onLeftDouble = { vm.setLeftDouble(it) },
+        onLeftTriple = { vm.setLeftTriple(it) },
+        onLeftLong = { vm.setLeftLong(it) },
+        onRightSingle = { vm.setRightSingle(it) },
+        onRightDouble = { vm.setRightDouble(it) },
+        onRightTriple = { vm.setRightTriple(it) },
+        onRightLong = { vm.setRightLong(it) },
+    )
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun StemActionConfigScreen(
+    state: StemActionConfigViewModel.State,
+    onNavigateUp: () -> Unit,
+    onReset: () -> Unit = {},
+    onLeftSingle: (StemAction) -> Unit = {},
+    onLeftDouble: (StemAction) -> Unit = {},
+    onLeftTriple: (StemAction) -> Unit = {},
+    onLeftLong: (StemAction) -> Unit = {},
+    onRightSingle: (StemAction) -> Unit = {},
+    onRightDouble: (StemAction) -> Unit = {},
+    onRightTriple: (StemAction) -> Unit = {},
+    onRightLong: (StemAction) -> Unit = {},
+) {
+    var showResetDialog by remember { mutableStateOf(false) }
+
+    if (showResetDialog) {
+        AlertDialog(
+            onDismissRequest = { showResetDialog = false },
+            confirmButton = {
+                TextButton(onClick = {
+                    onReset()
+                    showResetDialog = false
+                }) {
+                    Text(stringResource(android.R.string.ok))
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = { showResetDialog = false }) {
+                    Text(stringResource(android.R.string.cancel))
+                }
+            },
+            text = { Text(stringResource(R.string.stem_actions_reset_confirm_message)) },
+        )
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text(stringResource(R.string.stem_actions_title)) },
+                navigationIcon = {
+                    IconButton(onClick = onNavigateUp) {
+                        Icon(Icons.AutoMirrored.TwoTone.ArrowBack, contentDescription = null)
+                    }
+                },
+                actions = {
+                    IconButton(onClick = { showResetDialog = true }) {
+                        Icon(
+                            imageVector = Icons.TwoTone.RestartAlt,
+                            contentDescription = stringResource(R.string.stem_actions_reset_label),
+                        )
+                    }
+                },
+            )
+        },
+    ) { paddingValues ->
+        LazyColumn(modifier = Modifier.padding(paddingValues)) {
+            item("description") {
+                Text(
+                    text = stringResource(R.string.stem_actions_description),
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
+                )
+            }
+
+            // Press type rows with left/right dropdowns
+            item("single_header") {
+                SettingsCategoryHeader(text = stringResource(R.string.stem_actions_single_press))
+            }
+            item("single_row") {
+                StemActionRow(
+                    leftAction = state.leftSingle,
+                    rightAction = state.rightSingle,
+                    onLeftChange = onLeftSingle,
+                    onRightChange = onRightSingle,
+                )
+            }
+
+            item("double_header") {
+                SettingsCategoryHeader(text = stringResource(R.string.stem_actions_double_press))
+            }
+            item("double_row") {
+                StemActionRow(
+                    leftAction = state.leftDouble,
+                    rightAction = state.rightDouble,
+                    onLeftChange = onLeftDouble,
+                    onRightChange = onRightDouble,
+                )
+            }
+
+            item("triple_header") {
+                SettingsCategoryHeader(text = stringResource(R.string.stem_actions_triple_press))
+            }
+            item("triple_row") {
+                StemActionRow(
+                    leftAction = state.leftTriple,
+                    rightAction = state.rightTriple,
+                    onLeftChange = onLeftTriple,
+                    onRightChange = onRightTriple,
+                )
+            }
+
+            item("long_header") {
+                SettingsCategoryHeader(text = stringResource(R.string.stem_actions_long_press))
+            }
+            item("long_row") {
+                StemActionRow(
+                    leftAction = state.leftLong,
+                    rightAction = state.rightLong,
+                    onLeftChange = onLeftLong,
+                    onRightChange = onRightLong,
+                )
+            }
+
+            item("bottom_spacer") {
+                Spacer(modifier = Modifier.height(16.dp))
+            }
+        }
+    }
+}
+
+@Composable
+private fun StemActionRow(
+    leftAction: StemAction,
+    rightAction: StemAction,
+    onLeftChange: (StemAction) -> Unit,
+    onRightChange: (StemAction) -> Unit,
+) {
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 16.dp, vertical = 4.dp),
+    ) {
+        Column(modifier = Modifier.weight(1f)) {
+            Text(
+                text = stringResource(R.string.stem_actions_left),
+                style = MaterialTheme.typography.labelSmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            StemActionDropdown(
+                selected = leftAction,
+                onSelected = onLeftChange,
+                otherSideAction = rightAction,
+                modifier = Modifier.fillMaxWidth(),
+            )
+        }
+        Spacer(modifier = Modifier.width(12.dp))
+        Column(modifier = Modifier.weight(1f)) {
+            Text(
+                text = stringResource(R.string.stem_actions_right),
+                style = MaterialTheme.typography.labelSmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            StemActionDropdown(
+                selected = rightAction,
+                onSelected = onRightChange,
+                otherSideAction = leftAction,
+                modifier = Modifier.fillMaxWidth(),
+            )
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun StemActionDropdown(
+    selected: StemAction,
+    onSelected: (StemAction) -> Unit,
+    otherSideAction: StemAction,
+    modifier: Modifier = Modifier,
+) {
+    var expanded by remember { mutableStateOf(false) }
+
+    val options = if (otherSideAction == StemAction.NONE) {
+        StemAction.entries.filter { it != StemAction.NO_ACTION }
+    } else {
+        StemAction.entries.toList()
+    }
+
+    ExposedDropdownMenuBox(
+        expanded = expanded,
+        onExpandedChange = { expanded = it },
+        modifier = modifier,
+    ) {
+        OutlinedTextField(
+            value = selected.label(),
+            onValueChange = {},
+            readOnly = true,
+            trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
+            modifier = Modifier
+                .menuAnchor(ExposedDropdownMenuAnchorType.PrimaryNotEditable)
+                .fillMaxWidth(),
+            textStyle = MaterialTheme.typography.bodySmall,
+        )
+        ExposedDropdownMenu(
+            expanded = expanded,
+            onDismissRequest = { expanded = false },
+        ) {
+            for (action in options) {
+                DropdownMenuItem(
+                    text = { Text(action.label()) },
+                    onClick = {
+                        onSelected(action)
+                        expanded = false
+                    },
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun StemAction.label(): String = when (this) {
+    StemAction.NONE -> stringResource(R.string.stem_action_none)
+    StemAction.NO_ACTION -> stringResource(R.string.stem_action_no_action)
+    StemAction.PLAY_PAUSE -> stringResource(R.string.stem_action_play_pause)
+    StemAction.NEXT_TRACK -> stringResource(R.string.stem_action_next_track)
+    StemAction.PREVIOUS_TRACK -> stringResource(R.string.stem_action_previous_track)
+    StemAction.VOLUME_UP -> stringResource(R.string.stem_action_volume_up)
+    StemAction.VOLUME_DOWN -> stringResource(R.string.stem_action_volume_down)
+}

app/src/main/java/eu/darken/capod/main/ui/stemactions/StemActionConfigViewModel.kt

@@ -0,0 +1,107 @@
+package eu.darken.capod.main.ui.stemactions
+
+import dagger.hilt.android.lifecycle.HiltViewModel
+import eu.darken.capod.common.coroutine.DispatcherProvider
+import eu.darken.capod.common.uix.ViewModel4
+import eu.darken.capod.reaction.core.stem.StemAction
+import eu.darken.capod.reaction.core.stem.StemActionSettings
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.first
+import javax.inject.Inject
+
+@HiltViewModel
+class StemActionConfigViewModel @Inject constructor(
+    dispatcherProvider: DispatcherProvider,
+    private val stemActionSettings: StemActionSettings,
+) : ViewModel4(dispatcherProvider) {
+
+    val state = combine(
+        stemActionSettings.leftSingle.flow,
+        stemActionSettings.leftDouble.flow,
+        stemActionSettings.leftTriple.flow,
+        stemActionSettings.leftLong.flow,
+        stemActionSettings.rightSingle.flow,
+        stemActionSettings.rightDouble.flow,
+        stemActionSettings.rightTriple.flow,
+        stemActionSettings.rightLong.flow,
+    ) { values ->
+        State(
+            leftSingle = values[0],
+            leftDouble = values[1],
+            leftTriple = values[2],
+            leftLong = values[3],
+            rightSingle = values[4],
+            rightDouble = values[5],
+            rightTriple = values[6],
+            rightLong = values[7],
+        )
+    }.asLiveState()
+
+    data class State(
+        val leftSingle: StemAction = StemAction.NONE,
+        val leftDouble: StemAction = StemAction.NONE,
+        val leftTriple: StemAction = StemAction.NONE,
+        val leftLong: StemAction = StemAction.NONE,
+        val rightSingle: StemAction = StemAction.NONE,
+        val rightDouble: StemAction = StemAction.NONE,
+        val rightTriple: StemAction = StemAction.NONE,
+        val rightLong: StemAction = StemAction.NONE,
+    )
+
+    fun setLeftSingle(action: StemAction) = launch {
+        stemActionSettings.leftSingle.update { action }
+        applyCrossSideEffect(action, stemActionSettings.rightSingle)
+    }
+
+    fun setLeftDouble(action: StemAction) = launch {
+        stemActionSettings.leftDouble.update { action }
+        applyCrossSideEffect(action, stemActionSettings.rightDouble)
+    }
+
+    fun setLeftTriple(action: StemAction) = launch {
+        stemActionSettings.leftTriple.update { action }
+        applyCrossSideEffect(action, stemActionSettings.rightTriple)
+    }
+
+    fun setLeftLong(action: StemAction) = launch {
+        stemActionSettings.leftLong.update { action }
+        applyCrossSideEffect(action, stemActionSettings.rightLong)
+    }
+
+    fun setRightSingle(action: StemAction) = launch {
+        stemActionSettings.rightSingle.update { action }
+        applyCrossSideEffect(action, stemActionSettings.leftSingle)
+    }
+
+    fun setRightDouble(action: StemAction) = launch {
+        stemActionSettings.rightDouble.update { action }
+        applyCrossSideEffect(action, stemActionSettings.leftDouble)
+    }
+
+    fun setRightTriple(action: StemAction) = launch {
+        stemActionSettings.rightTriple.update { action }
+        applyCrossSideEffect(action, stemActionSettings.leftTriple)
+    }
+
+    fun setRightLong(action: StemAction) = launch {
+        stemActionSettings.rightLong.update { action }
+        applyCrossSideEffect(action, stemActionSettings.leftLong)
+    }
+
+    private suspend fun applyCrossSideEffect(
+        selected: StemAction,
+        otherSide: eu.darken.capod.common.datastore.DataStoreValue<StemAction>,
+    ) {
+        when (selected) {
+            StemAction.NONE -> otherSide.update { StemAction.NONE }
+            StemAction.NO_ACTION -> {} // No side-effect
+            else -> {
+                if (otherSide.flow.first() == StemAction.NONE) {
+                    otherSide.update { StemAction.NO_ACTION }
+                }
+            }
+        }
+    }
+
+    fun resetAll() = launch { stemActionSettings.resetAll() }
+}

app/src/main/java/eu/darken/capod/main/ui/widget/BatteryGlanceWidget.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.main.ui.widget
 
 import android.appwidget.AppWidgetManager
 import android.content.Context
+import androidx.annotation.Keep
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.glance.GlanceId
@@ -10,7 +11,6 @@ import androidx.glance.appwidget.GlanceAppWidget
 import androidx.glance.appwidget.GlanceAppWidgetManager
 import androidx.glance.appwidget.SizeMode
 import androidx.glance.appwidget.provideContent
-import androidx.annotation.Keep
 import dagger.hilt.EntryPoint
 import dagger.hilt.InstallIn
 import dagger.hilt.android.EntryPointAccessors
@@ -22,8 +22,8 @@ import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.upgrade.UpgradeRepo
 import eu.darken.capod.common.upgrade.isPro
-import eu.darken.capod.monitor.core.PodMonitor
-import eu.darken.capod.pods.core.PodDevice
+import eu.darken.capod.monitor.core.DeviceMonitor
+import eu.darken.capod.monitor.core.PodDevice
 import eu.darken.capod.profiles.core.DeviceProfilesRepo
 
 class BatteryGlanceWidget : GlanceAppWidget() {
@@ -34,7 +34,7 @@ class BatteryGlanceWidget : GlanceAppWidget() {
     @EntryPoint
     @InstallIn(SingletonComponent::class)
     interface WidgetEntryPoint {
-        fun podMonitor(): PodMonitor
+        fun deviceMonitor(): DeviceMonitor
         fun upgradeRepo(): UpgradeRepo
         fun widgetSettings(): WidgetSettings
         fun deviceProfilesRepo(): DeviceProfilesRepo
@@ -53,7 +53,7 @@ class BatteryGlanceWidget : GlanceAppWidget() {
             log(TAG, VERBOSE) { "provideGlance(appWidgetId=$appWidgetId)" }
             initialIsPro = ep.upgradeRepo().isPro()
             initialProfileId = ep.widgetSettings().getWidgetProfile(appWidgetId)
-            cachedDevice = initialProfileId?.let { ep.podMonitor().getDeviceForProfile(it) }
+            cachedDevice = initialProfileId?.let { ep.deviceMonitor().getDeviceForProfile(it) }
         } catch (e: Exception) {
             log(TAG, ERROR) { "provideGlance setup failed: ${e.asLog()}" }
             provideContent {
@@ -73,7 +73,7 @@ class BatteryGlanceWidget : GlanceAppWidget() {
 
         provideContent {
             // Composable reads — must be outside try-catch
-            val devices by ep.podMonitor().devices.collectAsState(initial = emptyList())
+            val devices by ep.deviceMonitor().devices.collectAsState(initial = emptyList())
             val profiles by ep.deviceProfilesRepo().profiles.collectAsState(initial = emptyList())
             val upgradeInfo by ep.upgradeRepo().upgradeInfo.collectAsState(initial = null)
             val widthDp = LocalSize.current.width
@@ -86,8 +86,8 @@ class BatteryGlanceWidget : GlanceAppWidget() {
 
                 val isPro = upgradeInfo?.isPro ?: initialIsPro
 
-                val liveDevice = devices.firstOrNull { it.meta.profile?.id == profileId }
-                val device = liveDevice ?: cachedDevice?.takeIf { it.meta.profile?.id == profileId }
+                val liveDevice = devices.firstOrNull { it.profileId == profileId }
+                val device = liveDevice ?: cachedDevice?.takeIf { it.profileId == profileId }
 
                 val profileLabel = profileId?.let { pid ->
                     profiles.firstOrNull { it.id == pid }?.label
@@ -139,7 +139,7 @@ class BatteryGlanceWidget : GlanceAppWidget() {
         var n = 2
         while (70 * n - 30 < size) {
             ++n
-}
+        }
         return n - 1
     }
 

app/src/main/java/eu/darken/capod/main/ui/widget/ComposeWidgetPreview.kt

@@ -30,7 +30,7 @@ import androidx.compose.ui.unit.sp
 import eu.darken.capod.R
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
-import eu.darken.capod.pods.core.toBatteryOrNull
+import eu.darken.capod.pods.core.apple.ble.toBatteryOrNull
 import kotlin.math.roundToInt
 
 @Composable

app/src/main/java/eu/darken/capod/main/ui/widget/GlanceWidgetContent.kt

@@ -26,7 +26,7 @@ import androidx.glance.text.TextAlign
 import androidx.glance.text.TextStyle
 import eu.darken.capod.R
 import eu.darken.capod.main.ui.MainActivity
-import eu.darken.capod.pods.core.toBatteryOrNull
+import eu.darken.capod.pods.core.apple.ble.toBatteryOrNull
 import kotlin.math.roundToInt
 
 @Composable

app/src/main/java/eu/darken/capod/main/ui/widget/WidgetConfigurationScreen.kt

@@ -24,10 +24,10 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.WindowInsetsSides
-import androidx.compose.foundation.layout.only
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.only
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.systemBars
@@ -77,7 +77,7 @@ import eu.darken.capod.R
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
-import eu.darken.capod.pods.core.PodDevice
+import eu.darken.capod.pods.core.apple.PodModel
 import eu.darken.capod.profiles.core.DeviceProfile
 
 @OptIn(ExperimentalLayoutApi::class)
@@ -413,7 +413,7 @@ private fun ProfileSelectionItem(
                     style = MaterialTheme.typography.bodyLarge,
                 )
                 val modelText = when (profile.model) {
-                    PodDevice.Model.UNKNOWN -> stringResource(R.string.pods_unknown_label)
+                    PodModel.UNKNOWN -> stringResource(R.string.pods_unknown_label)
                     else -> profile.model.label
                 }
                 Text(
@@ -456,7 +456,9 @@ private fun WidgetConfigPreview(
         tonalElevation = 2.dp,
     ) {
         Box(
-            modifier = Modifier.fillMaxWidth().padding(24.dp),
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(24.dp),
             contentAlignment = Alignment.Center,
         ) {
             if (hasTransparency) {
@@ -691,8 +693,8 @@ private fun HexColorInput(
 @Composable
 private fun WidgetConfigurationScreenPreview() = PreviewWrapper {
     val profiles = listOf(
-        MockPodDataProvider.profile("My AirPods Pro", PodDevice.Model.AIRPODS_PRO2),
-        MockPodDataProvider.profile("AirPods Max", PodDevice.Model.AIRPODS_MAX),
+        MockPodDataProvider.profile("My AirPods Pro", PodModel.AIRPODS_PRO2),
+        MockPodDataProvider.profile("AirPods Max", PodModel.AIRPODS_MAX),
     )
     WidgetConfigurationScreen(
         state = WidgetConfigurationViewModel.State(
@@ -720,7 +722,7 @@ private fun WidgetConfigurationScreenPreview() = PreviewWrapper {
 @Composable
 private fun WidgetConfigurationScreenCustomPreview() = PreviewWrapper {
     val profiles = listOf(
-        MockPodDataProvider.profile("My AirPods Pro", PodDevice.Model.AIRPODS_PRO2),
+        MockPodDataProvider.profile("My AirPods Pro", PodModel.AIRPODS_PRO2),
     )
     WidgetConfigurationScreen(
         state = WidgetConfigurationViewModel.State(
@@ -753,7 +755,7 @@ private fun WidgetConfigurationScreenCustomPreview() = PreviewWrapper {
 @Composable
 private fun WidgetConfigurationScreenNonProPreview() = PreviewWrapper {
     val profiles = listOf(
-        MockPodDataProvider.profile("My AirPods Pro", PodDevice.Model.AIRPODS_PRO2),
+        MockPodDataProvider.profile("My AirPods Pro", PodModel.AIRPODS_PRO2),
     )
     WidgetConfigurationScreen(
         state = WidgetConfigurationViewModel.State(

app/src/main/java/eu/darken/capod/main/ui/widget/WidgetRenderStateMapper.kt

@@ -4,15 +4,10 @@ import android.content.Context
 import androidx.annotation.ColorInt
 import androidx.appcompat.view.ContextThemeWrapper
 import eu.darken.capod.R
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.HasCase
-import eu.darken.capod.pods.core.HasChargeDetectionDual
-import eu.darken.capod.pods.core.HasEarDetection
-import eu.darken.capod.pods.core.HasEarDetectionDual
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.SinglePodDevice
-import eu.darken.capod.pods.core.getBatteryDrawable
-import eu.darken.capod.pods.core.toBatteryFloat
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.ble.getBatteryDrawable
+import eu.darken.capod.pods.core.apple.ble.toBatteryFloat
 
 object WidgetRenderStateMapper {
 
@@ -39,7 +34,7 @@ object WidgetRenderStateMapper {
                 secondaryText = context.getString(R.string.upgrade_capod_description),
             )
 
-            device is DualPodDevice -> WidgetRenderState.DualPod(
+            device != null && device.hasDualPods -> WidgetRenderState.DualPod(
                 theme = theme,
                 resolvedBgColor = bgColor,
                 resolvedTextColor = textColor,
@@ -47,32 +42,32 @@ object WidgetRenderStateMapper {
                 isWide = isWide,
                 deviceLabel = profileLabel ?: device.getLabel(context),
                 leftIcon = device.leftPodIcon,
-                leftPercent = device.batteryLeftPodPercent.toBatteryFloat(),
-                leftCharging = device is HasChargeDetectionDual && device.isLeftPodCharging,
-                leftInEar = device is HasEarDetectionDual && device.isLeftPodInEar,
+                leftPercent = device.batteryLeft.toBatteryFloat(),
+                leftCharging = device.isLeftPodCharging == true,
+                leftInEar = device.isLeftInEar == true,
                 rightIcon = device.rightPodIcon,
-                rightPercent = device.batteryRightPodPercent.toBatteryFloat(),
-                rightCharging = device is HasChargeDetectionDual && device.isRightPodCharging,
-                rightInEar = device is HasEarDetectionDual && device.isRightPodInEar,
-                caseIcon = (device as? HasCase)?.caseIcon ?: R.drawable.device_airpods_gen1_case,
-                casePercent = (device as? HasCase)?.batteryCasePercent.toBatteryFloat(),
-                caseCharging = device is HasCase && device.isCaseCharging,
+                rightPercent = device.batteryRight.toBatteryFloat(),
+                rightCharging = device.isRightPodCharging == true,
+                rightInEar = device.isRightInEar == true,
+                caseIcon = device.caseIcon,
+                casePercent = device.batteryCase.toBatteryFloat(),
+                caseCharging = device.isCaseCharging == true,
             )
 
-            device is SinglePodDevice -> WidgetRenderState.SinglePod(
+            device != null && device.model != PodModel.UNKNOWN -> WidgetRenderState.SinglePod(
                 theme = theme,
                 resolvedBgColor = bgColor,
                 resolvedTextColor = textColor,
                 resolvedIconColor = iconColor,
                 deviceLabel = profileLabel ?: device.getLabel(context),
                 headsetIcon = device.iconRes,
-                percent = device.batteryHeadsetPercent.toBatteryFloat(),
-                batteryIcon = getBatteryDrawable(device.batteryHeadsetPercent),
-                charging = device is HasChargeDetectionDual && device.isHeadsetBeingCharged,
-                worn = device is HasEarDetection && device.isBeingWorn,
+                percent = device.batteryHeadset.toBatteryFloat(),
+                batteryIcon = getBatteryDrawable(device.batteryHeadset),
+                charging = device.isHeadsetBeingCharged == true,
+                worn = device.isBeingWorn == true,
             )
 
-            device is PodDevice -> WidgetRenderState.Message(
+            device != null -> WidgetRenderState.Message(
                 theme = theme,
                 resolvedBgColor = bgColor,
                 resolvedTextColor = textColor,

app/src/main/java/eu/darken/capod/monitor/core/DeviceMonitor.kt

@@ -0,0 +1,186 @@
+package eu.darken.capod.monitor.core
+
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.coroutine.AppScope
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.replayingShare
+import eu.darken.capod.monitor.core.aap.AapLifecycleManager
+import eu.darken.capod.monitor.core.ble.BlePodMonitor
+import eu.darken.capod.monitor.core.cache.DeviceStateCache
+import eu.darken.capod.monitor.core.cache.toCachedState
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import eu.darken.capod.profiles.core.AppleDeviceProfile
+import eu.darken.capod.profiles.core.DeviceProfile
+import eu.darken.capod.profiles.core.DeviceProfilesRepo
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.firstOrNull
+import kotlinx.coroutines.flow.onEach
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Single merge point: combines BLE scan data ([eu.darken.capod.monitor.core.ble.BlePodMonitor]) with AAP connection data
+ * ([AapConnectionManager]) and cached device state ([eu.darken.capod.monitor.core.cache.DeviceStateCache]) into unified [PodDevice] objects.
+ *
+ * Includes cached-only devices for profiles that have cached state but no live BLE data.
+ * Persists live device state to [eu.darken.capod.monitor.core.cache.DeviceStateCache] as a side effect.
+ * ViewModels should observe [devices] instead of accessing BlePodMonitor directly.
+ */
+@Singleton
+class DeviceMonitor @Inject constructor(
+    @AppScope private val appScope: CoroutineScope,
+    private val blePodMonitor: BlePodMonitor,
+    private val aapManager: AapConnectionManager,
+    private val deviceStateCache: DeviceStateCache,
+    private val profilesRepo: DeviceProfilesRepo,
+    private val aapLifecycleManager: AapLifecycleManager,
+) {
+    init {
+        aapLifecycleManager.start()
+    }
+
+    val devices: Flow<List<PodDevice>> = combine(
+        blePodMonitor.devices,
+        aapManager.allStates,
+        deviceStateCache.cachedStates,
+        profilesRepo.profiles,
+    ) { pods, aapStates, cachedStates, profiles ->
+        // Live devices — BLE + AAP + cached fallback for missing fields
+        val liveDevices = pods.map { pod ->
+            val profile = pod.meta.profile
+            PodDevice(
+                profileId = profile?.id,
+                label = profile?.label,
+                ble = pod,
+                aap = aapStates.forProfile(profile),
+                cached = profile?.id?.let { cachedStates[it] },
+                profileAddress = profile?.address,
+                profileModel = profile?.model,
+                profileKeyState = profile.toBleKeyState(),
+            )
+        }
+
+        // Non-live devices — profiles with no live BLE detection. Synthesize from cache
+        // and/or AAP, whichever is available:
+        //   - cache only           → "cached-only" case (PR #484 fixed AAP attach here)
+        //   - AAP only             → cold-start case: AAP connected but no battery message
+        //                            received yet, so no cache write has happened
+        //   - cache + AAP          → mid-session BLE staleness with AAP still alive
+        val liveProfileIds = liveDevices.mapNotNull { it.profileId }.toSet()
+        val nonLiveDevices = profiles
+            .filter { it.id !in liveProfileIds }
+            .mapNotNull { profile ->
+                val cached = cachedStates[profile.id]
+                val aap = aapStates.forProfile(profile)
+                if (cached == null && aap == null) return@mapNotNull null
+                PodDevice(
+                    profileId = profile.id,
+                    label = profile.label,
+                    ble = null,
+                    aap = aap,
+                    cached = cached,
+                    profileAddress = profile.address,
+                    profileModel = profile.model,
+                    profileKeyState = profile.toBleKeyState(),
+                )
+            }
+
+        // De-dupe: if a synthesized non-live device with active AAP shares its model with
+        // an anonymous (profileId == null) BLE pod, the anonymous pod is most likely the
+        // same physical AirPods — the IRK match failed (e.g. wrong identity key, or keys
+        // haven't propagated yet). Hide the anonymous BLE pod to avoid two cards for the
+        // same device. Best-effort: model match only — BLE addresses are RPAs and can't
+        // be matched directly.
+        val nonLiveAapModels = nonLiveDevices
+            .filter { it.aap != null }
+            .map { it.model }
+            .filter { it != PodModel.UNKNOWN }
+            .toSet()
+        val dedupedLiveDevices = if (nonLiveAapModels.isEmpty()) {
+            liveDevices
+        } else {
+            val seenAnonymousModels = mutableSetOf<PodModel>()
+            liveDevices.filter { device ->
+                val isAnonymous = device.profileId == null
+                val matchesNonLive = device.model in nonLiveAapModels
+                // Hide at most one anonymous BLE pod per non-live AAP model so a second
+                // physical device of the same model isn't accidentally hidden.
+                !(isAnonymous && matchesNonLive && seenAnonymousModels.add(device.model))
+            }
+        }
+
+        dedupedLiveDevices + nonLiveDevices
+    }
+        .onEach { devices -> persistLiveDevices(devices) }
+        .replayingShare(appScope)
+
+    private suspend fun persistLiveDevices(devices: List<PodDevice>) {
+        for (device in devices) {
+            val profileId = device.profileId ?: continue
+            val existing = deviceStateCache.cachedStates.value[profileId]
+            val newState = device.toCachedState(existing) ?: continue
+
+            log(TAG, VERBOSE) { "Persisting state for $profileId" }
+            deviceStateCache.save(profileId, newState)
+        }
+    }
+
+    suspend fun getDeviceForProfile(profileId: String): PodDevice? {
+        log(TAG) { "getDeviceForProfile(profileId=$profileId)" }
+
+        val liveDevice = devices.firstOrNull()?.firstOrNull { it.profileId == profileId }
+        if (liveDevice != null) {
+            log(TAG) { "Found live device for profile $profileId" }
+            return liveDevice
+        }
+
+        val profile = profilesRepo.profiles.firstOrNull()?.firstOrNull { it.id == profileId }
+        val cached = deviceStateCache.load(profileId)
+        val aap = profile?.let { aapManager.allStates.value.forProfile(it) }
+
+        if (cached == null && aap == null) {
+            log(TAG) { "No device found for profile $profileId" }
+            return null
+        }
+
+        log(TAG) { "Found fallback device for profile $profileId (cached=${cached != null}, aap=${aap != null})" }
+        return PodDevice(
+            profileId = profileId,
+            label = profile?.label,
+            ble = null,
+            aap = aap,
+            cached = cached,
+            profileAddress = profile?.address,
+            profileModel = profile?.model,
+            profileKeyState = profile.toBleKeyState(),
+        )
+    }
+
+    /**
+     * Single source of truth for "find the AAP state that belongs to this profile".
+     * AAP is keyed by the bonded BR/EDR address, which lives on [DeviceProfile.address].
+     * Used by both the live and cached-only branches of [devices] so they cannot drift apart.
+     */
+    private fun Map<BluetoothAddress, AapPodState>.forProfile(profile: DeviceProfile?): AapPodState? =
+        profile?.address?.let { this[it] }
+
+    /**
+     * Derives the stable badge key state from the profile's stored IRK/ENC. Used so the badge
+     * icons don't evaporate every time the BLE scanner misses a scan batch.
+     */
+    private fun DeviceProfile?.toBleKeyState(): BleKeyState {
+        val apple = this as? AppleDeviceProfile ?: return BleKeyState.NONE
+        if (apple.identityKey == null) return BleKeyState.NONE
+        return if (apple.encryptionKey != null) BleKeyState.IRK_AND_ENCRYPTED else BleKeyState.IRK_ONLY
+    }
+
+    companion object {
+        private val TAG = logTag("DeviceMonitor")
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/DeviceMonitorExtensions.kt

@@ -0,0 +1,66 @@
+package eu.darken.capod.monitor.core
+
+import android.icu.text.RelativeDateTimeFormatter
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import java.time.Duration
+import java.time.Instant
+
+fun DeviceMonitor.devicesWithProfiles(): Flow<List<PodDevice>> = devices
+    .map { devices -> devices.filter { it.profileId != null } }
+
+fun DeviceMonitor.primaryDevice(): Flow<PodDevice?> = devicesWithProfiles().map { it.firstOrNull() }
+
+fun PodDevice.lastSeenFormatted(now: Instant): String {
+    val lastAt = seenLastAt ?: return ""
+    val formatter = RelativeDateTimeFormatter.getInstance()
+    val duration = Duration.between(lastAt, now)
+    return if (duration > Duration.ofMinutes(1)) {
+        formatter.format(
+            duration.toMinutes().toDouble(),
+            RelativeDateTimeFormatter.Direction.LAST,
+            RelativeDateTimeFormatter.RelativeUnit.MINUTES
+        )
+    } else {
+        formatter.format(
+            duration.seconds.toDouble(),
+            RelativeDateTimeFormatter.Direction.LAST,
+            RelativeDateTimeFormatter.RelativeUnit.SECONDS
+        )
+    }
+}
+
+fun PodDevice.firstSeenFormatted(now: Instant): String {
+    val firstAt = seenFirstAt ?: return ""
+    val formatter = RelativeDateTimeFormatter.getInstance()
+    val duration = Duration.between(firstAt, now)
+    return formatter.format(
+        duration.toMinutes().toDouble(),
+        RelativeDateTimeFormatter.Direction.LAST,
+        RelativeDateTimeFormatter.RelativeUnit.MINUTES
+    )
+}
+
+fun PodDevice.cachedBatteryFormatted(now: Instant): String {
+    val cachedAt = cachedBatteryAt ?: return ""
+    val formatter = RelativeDateTimeFormatter.getInstance()
+    val duration = Duration.between(cachedAt, now)
+    return when {
+        duration > Duration.ofHours(1) -> formatter.format(
+            duration.toHours().toDouble(),
+            RelativeDateTimeFormatter.Direction.LAST,
+            RelativeDateTimeFormatter.RelativeUnit.HOURS
+        )
+        duration > Duration.ofMinutes(1) -> formatter.format(
+            duration.toMinutes().toDouble(),
+            RelativeDateTimeFormatter.Direction.LAST,
+            RelativeDateTimeFormatter.RelativeUnit.MINUTES
+        )
+        else -> formatter.format(
+            duration.seconds.toDouble(),
+            RelativeDateTimeFormatter.Direction.LAST,
+            RelativeDateTimeFormatter.RelativeUnit.SECONDS
+        )
+    }
+}
+

app/src/main/java/eu/darken/capod/monitor/core/PodDevice.kt

@@ -0,0 +1,351 @@
+package eu.darken.capod.monitor.core
+
+import android.content.Context
+import androidx.compose.runtime.Stable
+import eu.darken.capod.R
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.monitor.core.cache.CachedDeviceState
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import eu.darken.capod.pods.core.apple.aap.protocol.AapDeviceInfo
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.DualBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.SingleBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.devices.ApplePods
+import eu.darken.capod.pods.core.apple.ble.devices.DualApplePods
+import eu.darken.capod.pods.core.apple.ble.devices.HasCase
+import eu.darken.capod.pods.core.apple.ble.devices.HasChargeDetection
+import eu.darken.capod.pods.core.apple.ble.devices.HasChargeDetectionDual
+import eu.darken.capod.pods.core.apple.ble.devices.HasDualMicrophone
+import eu.darken.capod.pods.core.apple.ble.devices.HasEarDetection
+import eu.darken.capod.pods.core.apple.ble.devices.HasEarDetectionDual
+import java.time.Duration
+import java.time.Instant
+
+/**
+ * Unified device facade combining BLE scan data and AAP connection data.
+ * All properties are dynamically resolved from the best available source.
+ * Consumers don't need to know whether data came from BLE or AAP.
+ */
+@Stable
+data class PodDevice(
+    val profileId: String?,
+    val label: String? = null,
+    internal val ble: BlePodSnapshot?,
+    internal val aap: AapPodState?,
+    internal val cached: CachedDeviceState? = null,
+    /** Bonded BR/EDR address from the profile — current source of truth, preferred over cache snapshot. */
+    internal val profileAddress: BluetoothAddress? = null,
+    /** Pod model from the profile — current source of truth, preferred over cache snapshot. */
+    internal val profileModel: PodModel? = null,
+    /**
+     * Key state derived from the profile's stored IRK/ENC. Used as the source of truth for the
+     * badge icons when the device is live — per-scan IRK matching would otherwise evaporate
+     * every time the BLE scanner misses the next advertisement batch.
+     */
+    internal val profileKeyState: BleKeyState = BleKeyState.NONE,
+) {
+    val model: PodModel get() = ble?.model ?: profileModel ?: cached?.model ?: PodModel.UNKNOWN
+    /** Bonded BR/EDR address (from profile). Used for AAP commands. */
+    val address: BluetoothAddress? get() = ble?.meta?.profile?.address ?: profileAddress ?: cached?.address
+    /** BLE scan address (RPA, rotates). */
+    val bleAddress: BluetoothAddress? get() = ble?.address
+    val identifier: BlePodSnapshot.Id? get() = ble?.identifier
+
+    /** True when at least one live data source (BLE or AAP) is present. */
+    val isLive: Boolean get() = ble != null || aap != null
+
+    // Capabilities from Model.Features
+    val hasCase: Boolean get() = model.features.hasCase
+    val hasDualPods: Boolean get() = model.features.hasDualPods
+    val hasEarDetection: Boolean get() = model.features.hasEarDetection
+    val hasAncControl: Boolean get() = model.features.hasAncControl
+    val hasDualMicrophone: Boolean get() = ble is HasDualMicrophone
+
+    // Signal / timing
+    val seenLastAt: Instant?
+        get() = listOfNotNull(ble?.seenLastAt, aap?.lastMessageAt, cached?.lastSeenAt).maxOrNull()
+    val seenFirstAt: Instant? get() = ble?.seenFirstAt
+    val signalQuality: Float
+        get() {
+            val bleQuality = ble?.signalQuality ?: 0f
+            return (bleQuality + computeAapBoost(Instant.now())).coerceAtMost(1f)
+        }
+
+    /**
+     * Quality value for the signal bar display. Prefers live BLE RSSI; when BLE is absent
+     * (common for a device that's actively connected to us via classic BT — we stop receiving
+     * its BLE advertisements), falls back to a full-bars constant as long as AAP is READY.
+     *
+     * Note: we don't try to graduate this off AAP message age. The AirPods only push messages
+     * on state changes (battery %, ear detection, setting toggles, user taps). A user quietly
+     * listening to music can go minutes without any AAP traffic, which is still a perfectly
+     * healthy connection. A quiet channel is not a weak channel.
+     */
+    val rssiQuality: Float
+        get() {
+            ble?.rssiQuality?.let { return it }
+            val state = aap ?: return 0f
+            return if (state.connectionState == AapPodState.ConnectionState.READY) 1.0f else 0f
+        }
+
+    val rssi: Int get() = ble?.rssi ?: 0
+
+    /** Snapshot of connection-related state for badges and bars. */
+    val connectionState: ConnectionState
+        get() = ConnectionState(
+            hasBleData = ble != null,
+            bleKeyState = bleKeyState,
+            isAapConnected = isAapConnected,
+            rssiQuality = rssiQuality,
+        )
+
+    internal fun computeAapBoost(now: Instant): Float {
+        val state = aap ?: return 0f
+        if (state.connectionState != AapPodState.ConnectionState.READY) return 0.05f
+        val lastMessage = state.lastMessageAt ?: return 0.05f
+        val ageSeconds = Duration.between(lastMessage, now).seconds
+        return when {
+            ageSeconds < 0 -> 0.05f   // future timestamp (defensive)
+            ageSeconds < 10 -> 0.15f  // fresh
+            ageSeconds < 30 -> 0.10f  // warm
+            else -> 0.05f             // stale
+        }
+    }
+
+    // Battery — AAP preferred, BLE fallback, then cached
+    val batteryLeft: Float?
+        get() = aap?.batteryLeft ?: (ble as? DualBlePodSnapshot)?.batteryLeftPodPercent ?: cached?.left?.percent
+
+    val batteryRight: Float?
+        get() = aap?.batteryRight ?: (ble as? DualBlePodSnapshot)?.batteryRightPodPercent ?: cached?.right?.percent
+
+    val batteryCase: Float?
+        get() = aap?.batteryCase ?: (ble as? HasCase)?.batteryCasePercent ?: cached?.case?.percent
+
+    val batteryHeadset: Float?
+        get() = aap?.batteryHeadset ?: (ble as? SingleBlePodSnapshot)?.batteryHeadsetPercent ?: cached?.headset?.percent
+
+    /** True when at least one displayed battery value was filled from cache (not live). */
+    val isBatteryCached: Boolean
+        get() {
+            if (cached == null) return false
+            val usedLeft = aap?.batteryLeft == null && (ble as? DualBlePodSnapshot)?.batteryLeftPodPercent == null && cached.left != null
+            val usedRight = aap?.batteryRight == null && (ble as? DualBlePodSnapshot)?.batteryRightPodPercent == null && cached.right != null
+            val usedCase = aap?.batteryCase == null && (ble as? HasCase)?.batteryCasePercent == null && cached.case != null
+            val usedHeadset = aap?.batteryHeadset == null && (ble as? SingleBlePodSnapshot)?.batteryHeadsetPercent == null && cached.headset != null
+            return usedLeft || usedRight || usedCase || usedHeadset
+        }
+
+    /** Oldest per-slot timestamp among battery values that fell through to cache. Null if all live. */
+    val cachedBatteryAt: Instant?
+        get() {
+            if (cached == null) return null
+            return listOfNotNull(
+                cached.left?.updatedAt.takeIf { aap?.batteryLeft == null && (ble as? DualBlePodSnapshot)?.batteryLeftPodPercent == null },
+                cached.right?.updatedAt.takeIf { aap?.batteryRight == null && (ble as? DualBlePodSnapshot)?.batteryRightPodPercent == null },
+                cached.case?.updatedAt.takeIf { aap?.batteryCase == null && (ble as? HasCase)?.batteryCasePercent == null },
+                cached.headset?.updatedAt.takeIf { aap?.batteryHeadset == null && (ble as? SingleBlePodSnapshot)?.batteryHeadsetPercent == null },
+            ).minOrNull()
+        }
+
+    // Charging — AAP preferred, BLE fallback, then cached
+    val isLeftPodCharging: Boolean?
+        get() = aap?.isLeftCharging ?: (ble as? HasChargeDetectionDual)?.isLeftPodCharging ?: cached?.isLeftCharging
+
+    val isRightPodCharging: Boolean?
+        get() = aap?.isRightCharging ?: (ble as? HasChargeDetectionDual)?.isRightPodCharging ?: cached?.isRightCharging
+
+    val isCaseCharging: Boolean?
+        get() = aap?.isCaseCharging ?: (ble as? HasCase)?.isCaseCharging ?: cached?.isCaseCharging
+
+    val isHeadsetBeingCharged: Boolean?
+        get() = aap?.isHeadsetCharging ?: (ble as? HasChargeDetection)?.isHeadsetBeingCharged ?: cached?.isHeadsetCharging
+
+    // Resolved primary pod: AAP cmd 0x08 preferred, BLE bit 5 fallback.
+    private val resolvedPrimaryPod: DualBlePodSnapshot.Pod?
+        get() = aap?.aapPrimaryPod?.pod?.let { aapPod ->
+            when (aapPod) {
+                AapSetting.PrimaryPod.Pod.LEFT -> DualBlePodSnapshot.Pod.LEFT
+                AapSetting.PrimaryPod.Pod.RIGHT -> DualBlePodSnapshot.Pod.RIGHT
+            }
+        } ?: (ble as? DualApplePods)?.primaryPod
+
+    // Ear detection — AAP preferred (lower latency), BLE fallback.
+    // AAP reports primary/secondary; resolvedPrimaryPod tells us which physical pod is primary.
+    val isLeftInEar: Boolean?
+        get() {
+            val earDetection = aap?.aapEarDetection
+            val primary = resolvedPrimaryPod
+            if (earDetection != null && primary != null) {
+                return if (primary == DualBlePodSnapshot.Pod.LEFT) {
+                    earDetection.primaryPod == AapSetting.EarDetection.PodPlacement.IN_EAR
+                } else {
+                    earDetection.secondaryPod == AapSetting.EarDetection.PodPlacement.IN_EAR
+                }
+            }
+            return (ble as? HasEarDetectionDual)?.isLeftPodInEar
+        }
+
+    val isRightInEar: Boolean?
+        get() {
+            val earDetection = aap?.aapEarDetection
+            val primary = resolvedPrimaryPod
+            if (earDetection != null && primary != null) {
+                return if (primary == DualBlePodSnapshot.Pod.RIGHT) {
+                    earDetection.primaryPod == AapSetting.EarDetection.PodPlacement.IN_EAR
+                } else {
+                    earDetection.secondaryPod == AapSetting.EarDetection.PodPlacement.IN_EAR
+                }
+            }
+            return (ble as? HasEarDetectionDual)?.isRightPodInEar
+        }
+
+    val isBeingWorn: Boolean?
+        get() {
+            val earDetection = aap?.aapEarDetection
+            if (earDetection != null) {
+                return earDetection.primaryPod == AapSetting.EarDetection.PodPlacement.IN_EAR
+                    && earDetection.secondaryPod == AapSetting.EarDetection.PodPlacement.IN_EAR
+            }
+            return (ble as? HasEarDetection)?.isBeingWorn
+        }
+
+    val isEitherPodInEar: Boolean?
+        get() = aap?.isEitherPodInEar ?: (ble as? HasEarDetectionDual)?.isEitherPodInEar
+
+    val caseLidState: DualApplePods.LidState?
+        get() = (ble as? DualApplePods)?.caseLidState
+
+    // Microphone — AAP preferred (from primary pod identity), BLE fallback
+    val isLeftPodMicrophone: Boolean?
+        get() {
+            aap?.aapPrimaryPod?.let { return it.pod == AapSetting.PrimaryPod.Pod.LEFT }
+            return (ble as? HasDualMicrophone)?.isLeftPodMicrophone
+        }
+
+    val isRightPodMicrophone: Boolean?
+        get() {
+            aap?.aapPrimaryPod?.let { return it.pod == AapSetting.PrimaryPod.Pod.RIGHT }
+            return (ble as? HasDualMicrophone)?.isRightPodMicrophone
+        }
+
+    // Icons / labels
+    val iconRes: Int get() = ble?.iconRes ?: model.iconRes
+
+    val leftPodIcon: Int
+        get() = (ble as? DualBlePodSnapshot)?.leftPodIcon
+            ?: model.leftPodIconRes
+            ?: R.drawable.device_airpods_gen1_left
+
+    val rightPodIcon: Int
+        get() = (ble as? DualBlePodSnapshot)?.rightPodIcon
+            ?: model.rightPodIconRes
+            ?: R.drawable.device_airpods_gen1_right
+
+    val caseIcon: Int
+        get() = (ble as? HasCase)?.caseIcon
+            ?: model.caseIconRes
+            ?: R.drawable.device_airpods_gen1_case
+
+    fun getLabel(context: Context): String = ble?.getLabel(context) ?: model.label
+
+    // Debug
+    val rawDataHex: List<String> get() = ble?.rawDataHex ?: emptyList()
+
+    // AAP controls
+    val ancMode: AapSetting.AncMode?
+        get() = aap?.setting()
+
+    val pendingAncMode: AapSetting.AncMode.Value?
+        get() = aap?.pendingAncMode
+
+    val conversationalAwareness: AapSetting.ConversationalAwareness?
+        get() = aap?.setting()
+
+    val toneVolume: AapSetting.ToneVolume?
+        get() = aap?.setting()
+
+    val personalizedVolume: AapSetting.PersonalizedVolume?
+        get() = aap?.setting()
+
+    val volumeSwipe: AapSetting.VolumeSwipe?
+        get() = aap?.setting()
+
+    val ncWithOneAirPod: AapSetting.NcWithOneAirPod?
+        get() = aap?.setting()
+
+    val adaptiveAudioNoise: AapSetting.AdaptiveAudioNoise?
+        get() = aap?.setting()
+
+    val pressSpeed: AapSetting.PressSpeed?
+        get() = aap?.setting()
+
+    val pressHoldDuration: AapSetting.PressHoldDuration?
+        get() = aap?.setting()
+
+    val volumeSwipeLength: AapSetting.VolumeSwipeLength?
+        get() = aap?.setting()
+
+    val endCallMuteMic: AapSetting.EndCallMuteMic?
+        get() = aap?.setting()
+
+    val microphoneMode: AapSetting.MicrophoneMode?
+        get() = aap?.setting()
+
+    val earDetectionEnabled: AapSetting.EarDetectionEnabled?
+        get() = aap?.setting()
+
+    val listeningModeCycle: AapSetting.ListeningModeCycle?
+        get() = aap?.setting()
+
+    val allowOffOption: AapSetting.AllowOffOption?
+        get() = aap?.setting()
+
+    val stemConfig: AapSetting.StemConfig?
+        get() = aap?.setting()
+
+    val sleepDetection: AapSetting.SleepDetection?
+        get() = aap?.setting()
+
+    val connectedDevices: AapSetting.ConnectedDevices?
+        get() = aap?.setting()
+
+    val audioSource: AapSetting.AudioSource?
+        get() = aap?.setting()
+
+    val eqBands: AapSetting.EqBands?
+        get() = aap?.setting()
+
+    val deviceInfo: AapDeviceInfo?
+        get() = aap?.deviceInfo ?: cached?.deviceInfo
+
+    val isAapConnected: Boolean get() = aap != null
+
+    val isAapReady: Boolean get() = aap?.connectionState == AapPodState.ConnectionState.READY
+
+    /**
+     * Badge key state for the overview card. Profile-stored keys are the source of truth while
+     * the device is live: a profile that has an IRK (and optionally ENC) keeps showing those
+     * icons whether the current scan happens to include a fresh BLE advertisement or not. For
+     * anonymous BLE pods (no profile), we still derive the state from the live scan result.
+     */
+    val bleKeyState: BleKeyState
+        get() {
+            if (!isLive) return BleKeyState.NONE
+            if (profileKeyState != BleKeyState.NONE) return profileKeyState
+            val applePod = ble as? ApplePods ?: return BleKeyState.NONE
+            if (!applePod.meta.isIRKMatch) return BleKeyState.NONE
+            return if (applePod.payload.private != null) BleKeyState.IRK_AND_ENCRYPTED else BleKeyState.IRK_ONLY
+        }
+}
+
+enum class BleKeyState { NONE, IRK_ONLY, IRK_AND_ENCRYPTED }
+
+data class ConnectionState(
+    val hasBleData: Boolean,
+    val bleKeyState: BleKeyState,
+    val isAapConnected: Boolean,
+    val rssiQuality: Float,
+)

app/src/main/java/eu/darken/capod/monitor/core/PodDeviceCache.kt

@@ -1,84 +0,0 @@
-package eu.darken.capod.monitor.core
-
-import android.content.Context
-import dagger.hilt.android.qualifiers.ApplicationContext
-import eu.darken.capod.common.bluetooth.BleScanResult
-import eu.darken.capod.common.coroutine.DispatcherProvider
-import eu.darken.capod.common.debug.logging.Logging.Priority.ERROR
-import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
-import eu.darken.capod.common.debug.logging.asLog
-import eu.darken.capod.common.debug.logging.log
-import eu.darken.capod.common.debug.logging.logTag
-import eu.darken.capod.common.serialization.SerializationCapod
-import eu.darken.capod.profiles.core.ProfileId
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withContext
-import kotlinx.serialization.json.Json
-import java.io.File
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class PodDeviceCache @Inject constructor(
-    @ApplicationContext private val context: Context,
-    private val dispatcherProvider: DispatcherProvider,
-    @SerializationCapod private val json: Json,
-) {
-    private val cacheDir by lazy {
-        File(context.cacheDir, "device_cache").apply { mkdirs() }
-    }
-    private val lock = Mutex()
-
-    private fun ProfileId.toCacheFile(): File = File(cacheDir, "profile_${this}.json")
-
-    suspend fun load(id: ProfileId): BleScanResult? = withContext(dispatcherProvider.IO) {
-        log(TAG, VERBOSE) { "load(id=$id)" }
-        val cacheFile = id.toCacheFile()
-        lock.withLock {
-            if (!cacheFile.exists()) return@withLock null
-            try {
-                val raw = cacheFile.readText()
-                json.decodeFromString<BleScanResult>(raw)
-            } catch (e: Exception) {
-                log(TAG, ERROR) { "Failed to read profile $id device: ${e.asLog()}, deleting corrupted cache file" }
-                cacheFile.delete()
-                null
-            }
-        }
-    }
-
-    suspend fun saveAll(data: Map<ProfileId, BleScanResult>) {
-        log(TAG, VERBOSE) { "saveAll(): ${data.size} entries" }
-        lock.withLock {
-            data.forEach { (id, device) ->
-                log(TAG, VERBOSE) { "save(id=$id, device=$device)" }
-                val cacheFile = id.toCacheFile()
-                try {
-                    val encoded = json.encodeToString(BleScanResult.serializer(), device)
-                    cacheFile.writeText(encoded)
-                } catch (e: Exception) {
-                    log(TAG, ERROR) { "Failed to save profile $id device $device: ${e.asLog()}" }
-                    cacheFile.delete()
-                }
-            }
-        }
-    }
-
-    suspend fun delete(id: ProfileId) {
-        log(TAG, VERBOSE) { "delete(): profileId=$id" }
-        lock.withLock {
-            val cacheFile = id.toCacheFile()
-            try {
-                cacheFile.delete()
-            } catch (e: Exception) {
-                log(TAG, ERROR) { "Failed to delete profile for $id: ${e.asLog()}" }
-            }
-        }
-    }
-
-    companion object {
-        private val TAG = logTag("Monitor", "PodMonitor", "Cache")
-    }
-}
-

app/src/main/java/eu/darken/capod/monitor/core/PodMonitorExtensions.kt

@@ -1,11 +0,0 @@
-package eu.darken.capod.monitor.core
-
-import eu.darken.capod.pods.core.PodDevice
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.map
-import kotlin.collections.firstOrNull
-
-fun PodMonitor.devicesWithProfiles(): Flow<List<PodDevice>> = devices
-    .map { devices -> devices.filter { it.meta.profile != null } }
-
-fun PodMonitor.primaryDevice(): Flow<PodDevice?> = devicesWithProfiles().map { it.firstOrNull() }

app/src/main/java/eu/darken/capod/monitor/core/PodSorter.kt

@@ -1,9 +0,0 @@
-package eu.darken.capod.monitor.core
-
-import dagger.Reusable
-import javax.inject.Inject
-
-@Reusable
-class PodSorter @Inject constructor(
-
-)

app/src/main/java/eu/darken/capod/monitor/core/aap/AapAutoConnect.kt

@@ -0,0 +1,236 @@
+package eu.darken.capod.monitor.core.aap
+
+import eu.darken.capod.common.bluetooth.BluetoothManager2
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.setupCommonEventHandlers
+import eu.darken.capod.monitor.core.ble.BlePodMonitor
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import eu.darken.capod.profiles.core.AppleDeviceProfile
+import eu.darken.capod.profiles.core.DeviceProfilesRepo
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.mapLatest
+import kotlinx.coroutines.flow.merge
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withTimeout
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.time.Duration.Companion.seconds
+
+@Singleton
+class AapAutoConnect @Inject constructor(
+    private val aapManager: AapConnectionManager,
+    private val profilesRepo: DeviceProfilesRepo,
+    private val bluetoothManager: BluetoothManager2,
+    private val blePodMonitor: BlePodMonitor,
+) {
+    private val activeReconnects = java.util.Collections.synchronizedSet(mutableSetOf<String>())
+    private val processedModelCorrections = java.util.Collections.synchronizedSet(mutableSetOf<String>())
+
+    fun monitor(): Flow<Unit> = merge(
+        initialConnect(),
+        reconnectOnDisconnect(),
+        correctModelOnDeviceInfo(),
+    )
+
+    private fun initialConnect(): Flow<Unit> = combine(
+        profilesRepo.profiles,
+        bluetoothManager.connectedDevices,
+    ) { profiles, connectedDevices ->
+        val connectedAddresses = connectedDevices.map { it.address }.toSet()
+        profiles.filter { it.address in connectedAddresses }
+    }
+        .mapLatest { profiles ->
+            val bondedDevices = bluetoothManager.bondedDevices().first()
+
+            coroutineScope {
+                for (profile in profiles) {
+                    launch { connectWithRetries(profile, bondedDevices) }
+                }
+            }
+        }
+        .setupCommonEventHandlers(TAG) { "initialConnect" }
+
+    private suspend fun connectWithRetries(
+        profile: eu.darken.capod.profiles.core.DeviceProfile,
+        bondedDevices: Set<eu.darken.capod.common.bluetooth.BluetoothDevice2>,
+    ) {
+        val address = profile.address ?: return
+        val bonded = bondedDevices.firstOrNull { it.address == address } ?: return
+
+        val currentState = aapManager.allStates.value[address]
+        if (currentState != null && currentState.connectionState != AapPodState.ConnectionState.DISCONNECTED) {
+            log(TAG, VERBOSE) { "AAP already connected/connecting to $address" }
+            return
+        }
+
+        log(TAG) { "AAP connecting to $address (${profile.label})" }
+        try {
+            withTimeout(CONNECT_TIMEOUT) {
+                aapManager.connect(address, bonded.internal, profile.model)
+            }
+            log(TAG) { "AAP connected to $address" }
+        } catch (e: Exception) {
+            log(TAG, WARN) { "AAP initial connect failed for $address: ${e.message}" }
+
+            for ((attempt, delayMs) in RETRY_DELAYS.withIndex()) {
+                delay(delayMs)
+
+                // Bail out if classic BT disconnected
+                val currentConnected = bluetoothManager.connectedDevices.first().map { it.address }.toSet()
+                if (address !in currentConnected) {
+                    log(TAG) { "AAP initial retry: $address no longer classically connected, stopping" }
+                    break
+                }
+
+                val retryState = aapManager.allStates.value[address]
+                if (retryState != null && retryState.connectionState != AapPodState.ConnectionState.DISCONNECTED) {
+                    log(TAG) { "AAP initial retry: $address already reconnected, stopping" }
+                    break
+                }
+
+                try {
+                    log(TAG) { "AAP initial retry ${attempt + 1} for $address after ${delayMs}ms" }
+                    withTimeout(CONNECT_TIMEOUT) {
+                        aapManager.connect(address, bonded.internal, profile.model)
+                    }
+                    log(TAG) { "AAP connected to $address on retry ${attempt + 1}" }
+                    break
+                } catch (retryException: Exception) {
+                    log(TAG, WARN) { "AAP initial retry ${attempt + 1} failed for $address: ${retryException.message}" }
+                }
+            }
+        }
+    }
+
+    private fun reconnectOnDisconnect(): Flow<Unit> = aapManager.disconnectEvents
+        .onEach { address ->
+            if (!activeReconnects.add(address)) {
+                log(TAG, VERBOSE) { "AAP reconnect already in progress for $address, skipping" }
+                return@onEach
+            }
+
+            try {
+                for ((attempt, delayMs) in RETRY_DELAYS.withIndex()) {
+                    delay(delayMs)
+
+                    // Check if still profiled
+                    val profile = profilesRepo.profiles.first()
+                        .firstOrNull { it.address == address }
+                    if (profile == null) {
+                        log(TAG) { "AAP reconnect: $address no longer profiled, stopping" }
+                        break
+                    }
+
+                    // Check if still bonded
+                    val bonded = bluetoothManager.bondedDevices().first()
+                        .firstOrNull { it.address == address }
+                    if (bonded == null) {
+                        log(TAG) { "AAP reconnect: $address no longer bonded, stopping" }
+                        break
+                    }
+
+                    // Check if still classically connected
+                    val currentConnected = bluetoothManager.connectedDevices.first().map { it.address }.toSet()
+                    if (address !in currentConnected) {
+                        log(TAG) { "AAP reconnect: $address no longer classically connected, stopping" }
+                        break
+                    }
+
+                    // Check if still visible in BLE
+                    val bleDevices = blePodMonitor.devices.first()
+                    if (bleDevices.none { it.meta?.profile?.address == address }) {
+                        log(TAG) { "AAP reconnect: $address no longer visible in BLE, stopping" }
+                        break
+                    }
+
+                    // Check if already reconnected (e.g., by initialConnect)
+                    val currentState = aapManager.allStates.value[address]
+                    if (currentState != null && currentState.connectionState != AapPodState.ConnectionState.DISCONNECTED) {
+                        log(TAG) { "AAP reconnect: $address already reconnected" }
+                        break
+                    }
+
+                    try {
+                        log(TAG) { "AAP reconnect attempt ${attempt + 1} for $address in ${delayMs}ms" }
+                        withTimeout(CONNECT_TIMEOUT) {
+                            aapManager.connect(address, bonded.internal, profile.model)
+                        }
+                        log(TAG) { "AAP reconnected to $address" }
+                        break
+                    } catch (e: Exception) {
+                        log(TAG, WARN) { "AAP reconnect attempt ${attempt + 1} failed for $address: ${e.message}" }
+                    }
+                }
+            } finally {
+                activeReconnects.remove(address)
+            }
+        }
+        .map { } // SharedFlow<BluetoothAddress> → Flow<Unit>
+        .setupCommonEventHandlers(TAG) { "reconnect" }
+
+    private fun correctModelOnDeviceInfo(): Flow<Unit> = aapManager.allStates
+        .map { states -> states.mapValues { (_, state) -> state.deviceInfo?.modelNumber } }
+        .distinctUntilChanged()
+        .map { modelNumbers ->
+            // Clean up tracking for addresses that disconnected
+            processedModelCorrections.retainAll(modelNumbers.keys)
+
+            for ((address, modelNumber) in modelNumbers) {
+                if (modelNumber == null) continue
+                if (address in processedModelCorrections) continue
+                processedModelCorrections.add(address)
+
+                try {
+                    val detectedModel = PodModel.fromModelNumber(modelNumber) ?: continue
+
+                    val profile = profilesRepo.profiles.first()
+                        .filterIsInstance<AppleDeviceProfile>()
+                        .firstOrNull { it.address == address }
+                        ?: continue
+
+                    if (profile.model == detectedModel) {
+                        log(TAG, VERBOSE) { "AAP model confirmed for $address: $detectedModel" }
+                        continue
+                    }
+
+                    log(TAG) { "AAP model mismatch for $address: profile=${profile.model}, detected=$detectedModel" }
+
+                    // Allow key exchange (AapKeyPersister) to complete before disconnecting
+                    delay(2.seconds)
+
+                    aapManager.disconnect(address)
+                    profilesRepo.updateProfile(profile.copy(model = detectedModel))
+                    log(TAG) { "AAP model corrected for $address: ${profile.model} -> $detectedModel" }
+
+                    // Reconnect explicitly
+                    val bonded = bluetoothManager.bondedDevices().first()
+                        .firstOrNull { it.address == address }
+                    if (bonded != null) {
+                        aapManager.connect(address, bonded.internal, detectedModel)
+                        log(TAG) { "AAP reconnected $address with corrected model $detectedModel" }
+                    }
+                } catch (e: Exception) {
+                    log(TAG, WARN) { "AAP model correction failed for $address: ${e.message}" }
+                }
+            }
+        }
+        .setupCommonEventHandlers(TAG) { "correctModel" }
+
+    companion object {
+        private val TAG = logTag("Monitor", "AapAutoConnect")
+        internal val RETRY_DELAYS = longArrayOf(3_000, 3_000, 3_000, 5_000, 5_000, 10_000, 10_000)
+        private val CONNECT_TIMEOUT = 5.seconds
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/aap/AapKeyPersister.kt

@@ -0,0 +1,52 @@
+package eu.darken.capod.monitor.core.aap
+
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.setupCommonEventHandlers
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.profiles.core.AppleDeviceProfile
+import eu.darken.capod.profiles.core.DeviceProfilesRepo
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEach
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Persists IRK/ENC keys from AAP key exchange to [AppleDeviceProfile],
+ * enabling BLE encrypted battery decryption with 1% granularity.
+ */
+@Singleton
+class AapKeyPersister @Inject constructor(
+    private val aapManager: AapConnectionManager,
+    private val profilesRepo: DeviceProfilesRepo,
+) {
+    fun monitor(): Flow<Unit> = aapManager.keysReceived
+        .onEach { (address, keys) ->
+            val profile = profilesRepo.profiles.first()
+                .filterIsInstance<AppleDeviceProfile>()
+                .firstOrNull { it.address == address }
+
+            if (profile == null) {
+                log(TAG) { "No profile found for $address, skipping key persistence" }
+                return@onEach
+            }
+
+            val updated = profile.copy(
+                identityKey = keys.irk ?: profile.identityKey,
+                encryptionKey = keys.encKey ?: profile.encryptionKey,
+            )
+
+            if (updated != profile) {
+                profilesRepo.updateProfile(updated)
+                log(TAG) { "Persisted keys for $address (IRK=${keys.irk != null}, ENC=${keys.encKey != null})" }
+            }
+        }
+        .map { }
+        .setupCommonEventHandlers(TAG) { "keyPersister" }
+
+    companion object {
+        private val TAG = logTag("Monitor", "AapKeyPersister")
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/aap/AapLifecycleManager.kt

@@ -0,0 +1,46 @@
+package eu.darken.capod.monitor.core.aap
+
+import eu.darken.capod.common.coroutine.AppScope
+import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
+import eu.darken.capod.common.debug.logging.asLog
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.setupCommonEventHandlers
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.merge
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Launches AAP auto-connect and key persistence in [appScope],
+ * independent of [eu.darken.capod.monitor.core.worker.MonitorService] lifecycle.
+ *
+ * Call [start] from [eu.darken.capod.monitor.core.DeviceMonitor] init to activate.
+ */
+@Singleton
+class AapLifecycleManager @Inject constructor(
+    @AppScope private val appScope: CoroutineScope,
+    private val aapAutoConnect: AapAutoConnect,
+    private val aapKeyPersister: AapKeyPersister,
+    private val stemConfigSender: StemConfigSender,
+    private val stemPressReaction: StemPressReaction,
+) {
+    fun start() {
+        log(TAG) { "start()" }
+        merge(
+            aapAutoConnect.monitor(),
+            aapKeyPersister.monitor(),
+            stemConfigSender.monitor(),
+            stemPressReaction.monitor(),
+        )
+            .catch { e -> log(TAG, WARN) { "AAP lifecycle error: ${e.asLog()}" } }
+            .setupCommonEventHandlers(TAG) { "aapActive" }
+            .launchIn(appScope)
+    }
+
+    companion object {
+        private val TAG = logTag("Monitor", "AapLifecycleManager")
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/aap/StemConfigSender.kt

@@ -0,0 +1,81 @@
+package eu.darken.capod.monitor.core.aap
+
+import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.setupCommonEventHandlers
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
+import eu.darken.capod.profiles.core.AppleDeviceProfile
+import eu.darken.capod.profiles.core.DeviceProfilesRepo
+import eu.darken.capod.reaction.core.stem.StemAction
+import eu.darken.capod.reaction.core.stem.StemActionSettings
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEach
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class StemConfigSender @Inject constructor(
+    private val aapManager: AapConnectionManager,
+    private val stemActionSettings: StemActionSettings,
+    private val profilesRepo: DeviceProfilesRepo,
+) {
+    fun monitor(): Flow<Unit> = combine(
+        aapManager.allStates,
+        stemActionMask(),
+    ) { states, mask ->
+        states.entries
+            .filter { (_, s) -> s.connectionState == AapPodState.ConnectionState.READY }
+            .mapNotNull { (address, _) ->
+                val profile = profilesRepo.profiles.first()
+                    .filterIsInstance<AppleDeviceProfile>()
+                    .firstOrNull { it.address == address }
+                if (profile != null && profile.model.features.hasStemConfig) {
+                    address to mask
+                } else {
+                    null
+                }
+            }
+    }
+        .distinctUntilChanged()
+        .onEach { commands ->
+            for ((address, mask) in commands) {
+                try {
+                    aapManager.sendCommand(address, AapCommand.SetStemConfig(mask))
+                    log(TAG) { "Sent stem config 0x${"%02X".format(mask)} to $address" }
+                } catch (e: Exception) {
+                    log(TAG, WARN) { "StemConfig send failed for $address: $e" }
+                }
+            }
+        }
+        .map { }
+        .setupCommonEventHandlers(TAG) { "stemConfig" }
+
+    private fun stemActionMask(): Flow<Int> = combine(
+        stemActionSettings.leftSingle.flow,
+        stemActionSettings.leftDouble.flow,
+        stemActionSettings.leftTriple.flow,
+        stemActionSettings.leftLong.flow,
+        stemActionSettings.rightSingle.flow,
+        stemActionSettings.rightDouble.flow,
+        stemActionSettings.rightTriple.flow,
+        stemActionSettings.rightLong.flow,
+    ) { values ->
+        var mask = 0
+        if (values[0] != StemAction.NONE || values[4] != StemAction.NONE) mask = mask or 0x01 // single
+        if (values[1] != StemAction.NONE || values[5] != StemAction.NONE) mask = mask or 0x02 // double
+        if (values[2] != StemAction.NONE || values[6] != StemAction.NONE) mask = mask or 0x04 // triple
+        if (values[3] != StemAction.NONE || values[7] != StemAction.NONE) mask = mask or 0x08 // long
+        mask
+    }
+
+    companion object {
+        private val TAG = logTag("Monitor", "StemConfigSender")
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/aap/StemPressReaction.kt

@@ -0,0 +1,64 @@
+package eu.darken.capod.monitor.core.aap
+
+import android.view.KeyEvent
+import eu.darken.capod.common.MediaControl
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.setupCommonEventHandlers
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.protocol.StemPressEvent
+import eu.darken.capod.reaction.core.stem.StemAction
+import eu.darken.capod.reaction.core.stem.StemActionSettings
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEach
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class StemPressReaction @Inject constructor(
+    private val aapManager: AapConnectionManager,
+    private val stemActionSettings: StemActionSettings,
+    private val mediaControl: MediaControl,
+) {
+    fun monitor(): Flow<Unit> = aapManager.stemPressEvents
+        .onEach { (_, event) ->
+            val action = resolveAction(event)
+            log(TAG) { "Stem ${event.bud} ${event.pressType} -> $action" }
+            executeAction(action)
+        }
+        .map { }
+        .setupCommonEventHandlers(TAG) { "stemReaction" }
+
+    private suspend fun resolveAction(event: StemPressEvent): StemAction {
+        val setting = when (event.bud) {
+            StemPressEvent.Bud.LEFT -> when (event.pressType) {
+                StemPressEvent.PressType.SINGLE -> stemActionSettings.leftSingle
+                StemPressEvent.PressType.DOUBLE -> stemActionSettings.leftDouble
+                StemPressEvent.PressType.TRIPLE -> stemActionSettings.leftTriple
+                StemPressEvent.PressType.LONG -> stemActionSettings.leftLong
+            }
+            StemPressEvent.Bud.RIGHT -> when (event.pressType) {
+                StemPressEvent.PressType.SINGLE -> stemActionSettings.rightSingle
+                StemPressEvent.PressType.DOUBLE -> stemActionSettings.rightDouble
+                StemPressEvent.PressType.TRIPLE -> stemActionSettings.rightTriple
+                StemPressEvent.PressType.LONG -> stemActionSettings.rightLong
+            }
+        }
+        return setting.flow.first()
+    }
+
+    private suspend fun executeAction(action: StemAction) = when (action) {
+        StemAction.NONE, StemAction.NO_ACTION -> Unit
+        StemAction.PLAY_PAUSE -> mediaControl.sendPlayPause()
+        StemAction.NEXT_TRACK -> mediaControl.sendKey(KeyEvent.KEYCODE_MEDIA_NEXT)
+        StemAction.PREVIOUS_TRACK -> mediaControl.sendKey(KeyEvent.KEYCODE_MEDIA_PREVIOUS)
+        StemAction.VOLUME_UP -> mediaControl.adjustVolumeUp()
+        StemAction.VOLUME_DOWN -> mediaControl.adjustVolumeDown()
+    }
+
+    companion object {
+        private val TAG = logTag("Monitor", "StemPressReaction")
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/ble/BlePodMonitor.kt

@@ -1,14 +1,14 @@
-package eu.darken.capod.monitor.core
+package eu.darken.capod.monitor.core.ble
 
 import android.bluetooth.le.ScanFilter
+import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.bluetooth.BleScanner
 import eu.darken.capod.common.bluetooth.BluetoothManager2
 import eu.darken.capod.common.bluetooth.ScannerMode
 import eu.darken.capod.common.bluetooth.onlyNewAndUnique
 import eu.darken.capod.common.coroutine.AppScope
 import eu.darken.capod.common.debug.DebugSettings
-import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
-import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
+import eu.darken.capod.common.debug.logging.Logging
 import eu.darken.capod.common.debug.logging.asLog
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
@@ -16,19 +16,20 @@ import eu.darken.capod.common.flow.replayingShare
 import eu.darken.capod.common.flow.throttleLatest
 import eu.darken.capod.main.core.GeneralSettings
 import eu.darken.capod.main.core.PermissionTool
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.PodFactory
-import eu.darken.capod.pods.core.apple.protocol.ProximityPairing
+import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.PodFactory
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPairing
 import eu.darken.capod.profiles.core.DeviceProfilesRepo
 import eu.darken.capod.profiles.core.currentProfiles
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.merge
 import kotlinx.coroutines.flow.onStart
 import kotlinx.coroutines.flow.retryWhen
 import kotlinx.coroutines.sync.Mutex
@@ -39,22 +40,21 @@ import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
-class PodMonitor @Inject constructor(
+class BlePodMonitor @Inject constructor(
     @AppScope private val appScope: CoroutineScope,
     private val bleScanner: BleScanner,
     private val podFactory: PodFactory,
     private val generalSettings: GeneralSettings,
     bluetoothManager: BluetoothManager2,
     private val debugSettings: DebugSettings,
-    private val podDeviceCache: PodDeviceCache,
     permissionTool: PermissionTool,
     private val profilesRepo: DeviceProfilesRepo,
 ) {
 
-    private val deviceCache = mutableMapOf<PodDevice.Id, PodDevice>()
+    private val deviceCache = mutableMapOf<BlePodSnapshot.Id, BlePodSnapshot>()
     private val cacheLock = Mutex()
 
-    val devices: Flow<List<PodDevice>> = combine(
+    val devices: Flow<List<BlePodSnapshot>> = combine(
         permissionTool.missingScanPermissions,
         bluetoothManager.isBluetoothEnabled
     ) { missingScanPermissions, isBluetoothEnabled ->
@@ -63,10 +63,16 @@ class PodMonitor @Inject constructor(
     }
         .flatMapLatest { isReady ->
             if (!isReady) {
-                log(TAG, WARN) { "Bluetooth is not ready" }
+                log(TAG, Logging.Priority.WARN) { "Bluetooth is not ready" }
                 flowOf(null)
             } else {
-                createBleScanner()
+                val staleEvictionTicker: Flow<Collection<BleScanResult>> = flow {
+                    while (true) {
+                        delay(STALE_EVICTION_INTERVAL.toMillis())
+                        emit(emptyList())
+                    }
+                }
+                merge(createBleScanner(), staleEvictionTicker)
             }
         }
         .map { results -> results?.mapNotNull { podFactory.createPod(it) } }
@@ -76,10 +82,13 @@ class PodMonitor @Inject constructor(
         }
         .retryWhen { cause, attempt ->
             if (cause is SecurityException) {
-                log(TAG, WARN) { "PodMonitor failed due to missing permission, not retrying: ${cause.asLog()}" }
+                log(
+                    TAG,
+                    Logging.Priority.WARN
+                ) { "PodMonitor failed due to missing permission, not retrying: ${cause.asLog()}" }
                 false
             } else {
-                log(TAG, WARN) { "PodMonitor failed (attempt=$attempt), will retry: ${cause.asLog()}" }
+                log(TAG, Logging.Priority.WARN) { "PodMonitor failed (attempt=$attempt), will retry: ${cause.asLog()}" }
                 delay(3000)
                 true
             }
@@ -87,12 +96,12 @@ class PodMonitor @Inject constructor(
         .onStart { emit(emptyList()) }
         .replayingShare(appScope)
 
-    private suspend fun sortPodsToInterest(devices: Collection<PodDevice>): List<PodDevice> {
+    private suspend fun sortPodsToInterest(devices: Collection<BlePodSnapshot>): List<BlePodSnapshot> {
         val now = Instant.now()
         val profiles = profilesRepo.currentProfiles() ?: emptyList()
 
         return devices.sortedWith(
-            compareBy<PodDevice> { device ->
+            compareBy<BlePodSnapshot> { device ->
                 // Use profile position in list as priority (0 = highest priority)
                 device.meta.profile?.let { profile ->
                     profiles.indexOfFirst { it.id == profile.id }.takeIf { it >= 0 } ?: Int.MAX_VALUE
@@ -140,7 +149,7 @@ class PodMonitor @Inject constructor(
         .flatMapLatest { options ->
             val filters = when {
                 options.showUnfiltered -> {
-                    log(TAG, WARN) { "Using unfiltered scan mode" }
+                    log(TAG, Logging.Priority.WARN) { "Using unfiltered scan mode" }
                     setOf(ScanFilter.Builder().build())
                 }
 
@@ -159,7 +168,7 @@ class PodMonitor @Inject constructor(
 
     private suspend fun processWithCache(
         newPods: List<PodFactory.Result>?
-    ): Map<PodDevice.Id, PodDevice> = cacheLock.withLock {
+    ): Map<BlePodSnapshot.Id, BlePodSnapshot> = cacheLock.withLock {
         if (newPods == null) {
             log(TAG) { "Null result, Bluetooth is disabled." }
             deviceCache.clear()
@@ -168,13 +177,13 @@ class PodMonitor @Inject constructor(
 
         val now = Instant.now()
         deviceCache.toList().forEach { (key, value) ->
-            if (Duration.between(value.seenLastAt, now) > Duration.ofSeconds(20)) {
-                log(TAG, VERBOSE) { "Removing stale device from cache: $value" }
+            if (Duration.between(value.seenLastAt, now) > STALE_DEVICE_TIMEOUT) {
+                log(TAG, Logging.Priority.VERBOSE) { "Removing stale device from cache: $value" }
                 deviceCache.remove(key)
             }
         }
 
-        val pods = mutableMapOf<PodDevice.Id, PodDevice>()
+        val pods = mutableMapOf<BlePodSnapshot.Id, BlePodSnapshot>()
 
         pods.putAll(deviceCache)
 
@@ -183,35 +192,12 @@ class PodMonitor @Inject constructor(
             pods[it.identifier] = it
         }
 
-        newPods
-            .mapNotNull {
-                val profileId = it.device.meta.profile?.id ?: return@mapNotNull null
-                profileId to it.device.scanResult
-            }
-            .toMap()
-            .run {                podDeviceCache.saveAll(this)            }
         return pods
     }
 
-    suspend fun getDeviceForProfile(profileId: String): PodDevice? {
-        log(TAG) { "getDeviceForProfile(profileId=$profileId)" }
-
-        val liveDevice = devices.firstOrNull()?.firstOrNull { device ->
-            device.meta.profile?.id == profileId
-        }
-        if (liveDevice != null) {
-            log(TAG) { "Found live device for profile $profileId: $liveDevice" }
-            return liveDevice
-        }
-
-        val cachedDevice = podDeviceCache.load(profileId)?.let {
-            podFactory.createPod(it)?.device
-        }
-        log(TAG) { "Cached device for profile $profileId: $cachedDevice" }
-        return cachedDevice
-    }
-
     companion object {
         private val TAG = logTag("Monitor", "PodMonitor")
+        private val STALE_DEVICE_TIMEOUT = Duration.ofSeconds(20)
+        private val STALE_EVICTION_INTERVAL = Duration.ofSeconds(10)
     }
 }

app/src/main/java/eu/darken/capod/monitor/core/cache/CachedDeviceState.kt

@@ -0,0 +1,47 @@
+package eu.darken.capod.monitor.core.cache
+
+import eu.darken.capod.common.serialization.InstantEpochMillisSerializer
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.protocol.AapDeviceInfo
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import java.time.Instant
+
+@Serializable
+data class CachedDeviceState(
+    @SerialName("profileId") val profileId: String,
+    @SerialName("model") val model: PodModel,
+    @SerialName("address") val address: String? = null,
+    @SerialName("left") val left: CachedBatterySlot? = null,
+    @SerialName("right") val right: CachedBatterySlot? = null,
+    @SerialName("case") val case: CachedBatterySlot? = null,
+    @SerialName("headset") val headset: CachedBatterySlot? = null,
+    @SerialName("isLeftCharging") val isLeftCharging: Boolean? = null,
+    @SerialName("isRightCharging") val isRightCharging: Boolean? = null,
+    @SerialName("isCaseCharging") val isCaseCharging: Boolean? = null,
+    @SerialName("isHeadsetCharging") val isHeadsetCharging: Boolean? = null,
+    @SerialName("deviceName") val deviceName: String? = null,
+    @SerialName("serialNumber") val serialNumber: String? = null,
+    @SerialName("firmwareVersion") val firmwareVersion: String? = null,
+    @Serializable(with = InstantEpochMillisSerializer::class)
+    @SerialName("lastSeenAt") val lastSeenAt: Instant,
+) {
+    val deviceInfo: AapDeviceInfo?
+        get() {
+            if (deviceName == null && serialNumber == null && firmwareVersion == null) return null
+            return AapDeviceInfo(
+                name = deviceName ?: "",
+                modelNumber = "",
+                manufacturer = "",
+                serialNumber = serialNumber ?: "",
+                firmwareVersion = firmwareVersion ?: "",
+            )
+        }
+
+    @Serializable
+    data class CachedBatterySlot(
+        @SerialName("percent") val percent: Float,
+        @Serializable(with = InstantEpochMillisSerializer::class)
+        @SerialName("updatedAt") val updatedAt: Instant,
+    )
+}

app/src/main/java/eu/darken/capod/monitor/core/cache/DeviceStateCache.kt

@@ -0,0 +1,120 @@
+package eu.darken.capod.monitor.core.cache
+
+import android.content.Context
+import dagger.hilt.android.qualifiers.ApplicationContext
+import eu.darken.capod.common.coroutine.AppScope
+import eu.darken.capod.common.coroutine.DispatcherProvider
+import eu.darken.capod.common.debug.logging.Logging
+import eu.darken.capod.common.debug.logging.asLog
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.serialization.SerializationCapod
+import eu.darken.capod.profiles.core.ProfileId
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.json.Json
+import java.io.File
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class DeviceStateCache @Inject constructor(
+    @ApplicationContext private val context: Context,
+    @AppScope private val appScope: CoroutineScope,
+    private val dispatcherProvider: DispatcherProvider,
+    @SerializationCapod private val json: Json,
+) {
+    private val cacheDir by lazy {
+        File(context.filesDir, "device_state_cache").apply { mkdirs() }
+    }
+    private val lock = Mutex()
+
+    private val _cachedStates = MutableStateFlow<Map<ProfileId, CachedDeviceState>>(emptyMap())
+    val cachedStates: StateFlow<Map<ProfileId, CachedDeviceState>> = _cachedStates
+
+    init {
+        appScope.launch { loadAll() }
+    }
+
+    private suspend fun loadAll() = withContext(dispatcherProvider.IO) {
+        lock.withLock {
+            val dir = cacheDir
+            if (!dir.exists()) return@withLock
+
+            val loaded = mutableMapOf<ProfileId, CachedDeviceState>()
+            dir.listFiles()?.filter { it.name.startsWith("profile_") && it.name.endsWith(".json") }?.forEach { file ->
+                val profileId = file.name.removePrefix("profile_").removeSuffix(".json")
+                try {
+                    val state = json.decodeFromString<CachedDeviceState>(file.readText())
+                    loaded[profileId] = state
+                } catch (e: Exception) {
+                    log(
+                        TAG,
+                        Logging.Priority.ERROR
+                    ) { "Failed to load cached state from ${file.name}: ${e.asLog()}, deleting" }
+                    file.delete()
+                }
+            }
+            log(TAG, Logging.Priority.VERBOSE) { "loadAll(): loaded ${loaded.size} entries" }
+            _cachedStates.value = loaded
+        }
+    }
+
+    private fun ProfileId.toCacheFile(): File = File(cacheDir, "profile_${this}.json")
+
+    suspend fun save(id: ProfileId, state: CachedDeviceState) = withContext(dispatcherProvider.IO) {
+        lock.withLock {
+            log(TAG, Logging.Priority.VERBOSE) { "save(id=$id)" }
+            val file = id.toCacheFile()
+            try {
+                file.writeText(json.encodeToString(CachedDeviceState.serializer(), state))
+                _cachedStates.value += (id to state)
+            } catch (e: Exception) {
+                log(TAG, Logging.Priority.ERROR) { "Failed to save state for $id: ${e.asLog()}" }
+                file.delete()
+            }
+        }
+    }
+
+    suspend fun load(id: ProfileId): CachedDeviceState? = withContext(dispatcherProvider.IO) {
+        lock.withLock {
+            val cached = _cachedStates.value[id]
+            if (cached != null) return@withContext cached
+
+            val file = id.toCacheFile()
+            if (!file.exists()) return@withContext null
+            try {
+                json.decodeFromString<CachedDeviceState>(file.readText())
+            } catch (e: Exception) {
+                log(TAG, Logging.Priority.ERROR) { "Failed to load state for $id: ${e.asLog()}, deleting" }
+                file.delete()
+                null
+            }
+        }
+    }
+
+    suspend fun delete(id: ProfileId) = withContext(dispatcherProvider.IO) {
+        lock.withLock {
+            log(TAG, Logging.Priority.VERBOSE) { "delete(id=$id)" }
+            id.toCacheFile().delete()
+            _cachedStates.value -= id
+        }
+    }
+
+    suspend fun deleteAll() = withContext(dispatcherProvider.IO) {
+        lock.withLock {
+            log(TAG, Logging.Priority.VERBOSE) { "deleteAll()" }
+            cacheDir.listFiles()?.forEach { it.delete() }
+            _cachedStates.value = emptyMap()
+        }
+    }
+
+    companion object {
+        private val TAG = logTag("Monitor", "DeviceStateCache")
+    }
+}

app/src/main/java/eu/darken/capod/monitor/core/cache/DeviceStateCacheExtensions.kt

@@ -0,0 +1,71 @@
+package eu.darken.capod.monitor.core.cache
+
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.monitor.core.cache.CachedDeviceState.CachedBatterySlot
+import eu.darken.capod.pods.core.apple.ble.DualBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.SingleBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.devices.HasCase
+import java.time.Duration
+import java.time.Instant
+
+/**
+ * Creates a [CachedDeviceState] from this live device's raw BLE/AAP battery data.
+ * Returns null if:
+ * - The device is not live (cached-only)
+ * - The device has no profile
+ * - All live battery values are null
+ * - The state hasn't changed from [existing] (dedup)
+ */
+fun PodDevice.toCachedState(
+    existing: CachedDeviceState?,
+    now: Instant = Instant.now(),
+): CachedDeviceState? {
+    if (!isLive) return null
+    val pid = profileId ?: return null
+
+    val liveLeft = aap?.batteryLeft ?: (ble as? DualBlePodSnapshot)?.batteryLeftPodPercent
+    val liveRight = aap?.batteryRight ?: (ble as? DualBlePodSnapshot)?.batteryRightPodPercent
+    val liveCase = aap?.batteryCase ?: (ble as? HasCase)?.batteryCasePercent
+    val liveHeadset = aap?.batteryHeadset ?: (ble as? SingleBlePodSnapshot)?.batteryHeadsetPercent
+
+    if (liveLeft == null && liveRight == null && liveCase == null && liveHeadset == null) return null
+
+    val liveDeviceInfo = aap?.deviceInfo
+
+    val newState = CachedDeviceState(
+        profileId = pid,
+        model = model,
+        address = address,
+        left = liveLeft?.let { CachedBatterySlot(it, now) } ?: existing?.left,
+        right = liveRight?.let { CachedBatterySlot(it, now) } ?: existing?.right,
+        case = liveCase?.let { CachedBatterySlot(it, now) } ?: existing?.case,
+        headset = liveHeadset?.let { CachedBatterySlot(it, now) } ?: existing?.headset,
+        isLeftCharging = isLeftPodCharging,
+        isRightCharging = isRightPodCharging,
+        isCaseCharging = isCaseCharging,
+        isHeadsetCharging = isHeadsetBeingCharged,
+        deviceName = liveDeviceInfo?.name ?: existing?.deviceName,
+        serialNumber = liveDeviceInfo?.serialNumber ?: existing?.serialNumber,
+        firmwareVersion = liveDeviceInfo?.firmwareVersion ?: existing?.firmwareVersion,
+        lastSeenAt = seenLastAt ?: now,
+    )
+
+    if (existing != null && !hasStateChanged(existing, newState)) return null
+
+    return newState
+}
+
+private fun hasStateChanged(old: CachedDeviceState, new: CachedDeviceState): Boolean {
+    if (Duration.between(old.lastSeenAt, new.lastSeenAt).abs() > Duration.ofMinutes(1)) return true
+    return old.left?.percent != new.left?.percent
+        || old.right?.percent != new.right?.percent
+        || old.case?.percent != new.case?.percent
+        || old.headset?.percent != new.headset?.percent
+        || old.isLeftCharging != new.isLeftCharging
+        || old.isRightCharging != new.isRightCharging
+        || old.isCaseCharging != new.isCaseCharging
+        || old.isHeadsetCharging != new.isHeadsetCharging
+        || old.deviceName != new.deviceName
+        || old.serialNumber != new.serialNumber
+        || old.firmwareVersion != new.firmwareVersion
+}

app/src/main/java/eu/darken/capod/monitor/core/receiver/BluetoothEventReceiver.kt

@@ -12,7 +12,7 @@ import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.monitor.core.worker.MonitorControl
-import eu.darken.capod.pods.core.apple.protocol.ContinuityProtocol
+import eu.darken.capod.pods.core.apple.ble.protocol.ContinuityProtocol
 import javax.inject.Inject
 
 @AndroidEntryPoint

app/src/main/java/eu/darken/capod/monitor/core/worker/MonitorService.kt

@@ -14,6 +14,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import eu.darken.capod.common.bluetooth.BluetoothDevice2
 import eu.darken.capod.common.bluetooth.BluetoothManager2
 import eu.darken.capod.common.coroutine.DispatcherProvider
+import eu.darken.capod.common.datastore.valueBlocking
 import eu.darken.capod.common.debug.Bugs
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
 import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
@@ -26,10 +27,12 @@ import eu.darken.capod.common.hasApiLevel
 import eu.darken.capod.main.core.GeneralSettings
 import eu.darken.capod.main.core.MonitorMode
 import eu.darken.capod.main.core.PermissionTool
+import eu.darken.capod.monitor.core.DeviceMonitor
 import eu.darken.capod.monitor.core.MonitorCoroutineScope
-import eu.darken.capod.monitor.core.PodMonitor
+import eu.darken.capod.monitor.core.ble.BlePodMonitor
 import eu.darken.capod.monitor.core.primaryDevice
 import eu.darken.capod.monitor.ui.MonitorNotifications
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
 import eu.darken.capod.profiles.core.DeviceProfile
 import eu.darken.capod.profiles.core.DeviceProfilesRepo
 import eu.darken.capod.reaction.core.autoconnect.AutoConnect
@@ -53,7 +56,6 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import javax.inject.Inject
-import eu.darken.capod.common.datastore.valueBlocking
 
 @AndroidEntryPoint
 class MonitorService : Service() {
@@ -63,13 +65,15 @@ class MonitorService : Service() {
     @Inject lateinit var notificationManager: NotificationManager
     @Inject lateinit var generalSettings: GeneralSettings
     @Inject lateinit var permissionTool: PermissionTool
-    @Inject lateinit var podMonitor: PodMonitor
+    @Inject lateinit var blePodMonitor: BlePodMonitor
+    @Inject lateinit var deviceMonitor: DeviceMonitor
     @Inject lateinit var bluetoothManager: BluetoothManager2
     @Inject lateinit var playPause: PlayPause
     @Inject lateinit var autoConnect: AutoConnect
     @Inject lateinit var popUpReaction: PopUpReaction
     @Inject lateinit var popUpWindow: PopUpWindow
     @Inject lateinit var profilesRepo: DeviceProfilesRepo
+    @Inject lateinit var aapConnectionManager: AapConnectionManager
 
     private val monitorScope = MonitorCoroutineScope()
     private var monitoringJob: Job? = null
@@ -176,8 +180,8 @@ class MonitorService : Service() {
             return
         }
 
-        val monitorJob = podMonitor.primaryDevice()
-            .setupCommonEventHandlers(TAG) { "PodMonitor" }
+        val monitorJob = deviceMonitor.primaryDevice()
+            .setupCommonEventHandlers(TAG) { "BlePodMonitor" }
             .distinctUntilChanged()
             .throttleLatest(1000)
             .onEach { currentDevice ->
@@ -209,8 +213,9 @@ class MonitorService : Service() {
                         generalSettings.monitorMode.flow,
                         profilesRepo.profiles,
                         bluetoothManager.connectedDevices,
-                    ) { monitorMode, profiles, connectedDevices ->
-                        listOf(monitorMode, profiles, connectedDevices)
+                        aapConnectionManager.allStates,
+                    ) { monitorMode, profiles, connectedDevices, aapStates ->
+                        listOf(monitorMode, profiles, connectedDevices, aapStates)
                     }
                 }
             }
@@ -220,9 +225,13 @@ class MonitorService : Service() {
 
                 @Suppress("UNCHECKED_CAST")
                 val profiles = arguments[1] as List<DeviceProfile>
+
                 @Suppress("UNCHECKED_CAST")
                 val devices = arguments[2] as Collection<BluetoothDevice2>
 
+                @Suppress("UNCHECKED_CAST")
+                val aapStates = arguments[3] as Map<*, *>
+
                 val connectedAddresses = devices.map { it.address }.toSet()
                 val knownAddresses = profiles.mapNotNull { it.address }.toSet()
                 log(TAG) { "Monitor mode: $monitorMode" }
@@ -241,7 +250,7 @@ class MonitorService : Service() {
                                 log(TAG, WARN) { "Main device address not set, staying alive while any is connected" }
                             }
 
-                            knownAddresses.any { it in connectedAddresses } -> {
+                            knownAddresses.any { it in connectedAddresses } || aapStates.isNotEmpty() -> {
                                 log(TAG) { "A device is connected, aborting any timeout." }
                             }
 

app/src/main/java/eu/darken/capod/monitor/ui/MonitorNotificationViewFactory.kt

@@ -5,15 +5,10 @@ import android.view.View
 import android.widget.RemoteViews
 import dagger.hilt.android.qualifiers.ApplicationContext
 import eu.darken.capod.R
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.HasCase
-import eu.darken.capod.pods.core.HasChargeDetectionDual
-import eu.darken.capod.pods.core.HasEarDetection
-import eu.darken.capod.pods.core.HasEarDetectionDual
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.SinglePodDevice
-import eu.darken.capod.pods.core.formatBatteryPercent
-import eu.darken.capod.pods.core.getBatteryDrawable
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.ble.formatBatteryPercent
+import eu.darken.capod.pods.core.apple.ble.getBatteryDrawable
 import javax.inject.Inject
 import kotlin.math.roundToInt
 
@@ -22,58 +17,61 @@ class MonitorNotificationViewFactory @Inject constructor(
     @ApplicationContext private val context: Context
 ) {
 
-    fun createContentView(device: PodDevice): RemoteViews = when (device) {
-        is DualPodDevice -> createDualPods(device)
-        is SinglePodDevice -> createSinglePod(device)
+    fun createContentView(device: PodDevice): RemoteViews = when {
+        device.hasDualPods -> createDualPods(device)
+        device.model != PodModel.UNKNOWN -> createSinglePod(device)
         else -> createUnknownDevice(device)
     }
 
-    private fun createDualPods(device: DualPodDevice): RemoteViews = RemoteViews(
+    private fun createDualPods(device: PodDevice): RemoteViews = RemoteViews(
         context.packageName,
         R.layout.monitor_notification_dual_pods_small
     ).apply {
         // Left
-        val leftPercent = device.batteryLeftPodPercent
+        val leftPercent = device.batteryLeft
         setImageViewResource(R.id.pod_left_icon, device.leftPodIcon)
         setTextViewText(R.id.pod_left_label, formatBatteryPercent(context, leftPercent))
-        val isLeftPodCharging = (device as? HasChargeDetectionDual)?.isLeftPodCharging ?: false
+        val isLeftPodCharging = device.isLeftPodCharging ?: false
         setViewVisibility(R.id.pod_left_charging, if (isLeftPodCharging) View.VISIBLE else View.GONE)
-        val isLeftPodInEar = (device as? HasEarDetectionDual)?.isLeftPodInEar ?: false
+        val isLeftPodInEar = device.isLeftInEar ?: false
         setViewVisibility(R.id.pod_left_ear, if (isLeftPodInEar) View.VISIBLE else View.GONE)
 
         // Case
-        setViewVisibility(R.id.pod_case_charging, if (device is HasCase) View.VISIBLE else View.GONE)
-        (device as? HasCase)?.let { case ->
+        setViewVisibility(R.id.pod_case_charging, if (device.hasCase) View.VISIBLE else View.GONE)
+        if (device.hasCase) {
             setImageViewResource(R.id.pod_case_icon, device.caseIcon)
-            val casePercent = case.batteryCasePercent
+            val casePercent = device.batteryCase
             setTextViewText(R.id.pod_case_label, formatBatteryPercent(context, casePercent))
-            setViewVisibility(R.id.pod_case_charging, if (case.isCaseCharging) View.VISIBLE else View.GONE)
+            setViewVisibility(R.id.pod_case_charging, if (device.isCaseCharging == true) View.VISIBLE else View.GONE)
         }
 
         // Right
-        val rightPercent = device.batteryRightPodPercent
+        val rightPercent = device.batteryRight
         setImageViewResource(R.id.pod_right_icon, device.rightPodIcon)
         setTextViewText(R.id.pod_right_label, formatBatteryPercent(context, rightPercent))
-        val isRightPodCharging = (device as? HasChargeDetectionDual)?.isRightPodCharging ?: false
+        val isRightPodCharging = device.isRightPodCharging ?: false
         setViewVisibility(R.id.pod_right_charging, if (isRightPodCharging) View.VISIBLE else View.GONE)
-        val isRightPodInEar = (device as? HasEarDetectionDual)?.isRightPodInEar ?: false
+        val isRightPodInEar = device.isRightInEar ?: false
         setViewVisibility(R.id.pod_right_ear, if (isRightPodInEar) View.VISIBLE else View.GONE)
     }
 
-    private fun createSinglePod(device: SinglePodDevice): RemoteViews = RemoteViews(
+    private fun createSinglePod(device: PodDevice): RemoteViews = RemoteViews(
         context.packageName,
         R.layout.monitor_notification_single_pods_small
     ).apply {
-        val headsetPercent = device.batteryHeadsetPercent
+        val headsetPercent = device.batteryHeadset
         setTextViewText(R.id.headphones_label, device.getLabel(context))
         setImageViewResource(R.id.headphones_icon, device.iconRes)
         setImageViewResource(R.id.headphones_battery_icon, getBatteryDrawable(headsetPercent))
         setTextViewText(R.id.headphones_battery_label, formatBatteryPercent(context, headsetPercent))
-        if (device is HasEarDetection) {
-            setViewVisibility(R.id.headphones_worn, if (device.isBeingWorn) View.VISIBLE else View.GONE)
+        if (device.hasEarDetection) {
+            setViewVisibility(R.id.headphones_worn, if (device.isBeingWorn == true) View.VISIBLE else View.GONE)
         }
-        if (device is HasChargeDetectionDual) {
-            setViewVisibility(R.id.headphones_charging, if (device.isHeadsetBeingCharged) View.VISIBLE else View.GONE)
+        if (device.isHeadsetBeingCharged != null) {
+            setViewVisibility(
+                R.id.headphones_charging,
+                if (device.isHeadsetBeingCharged == true) View.VISIBLE else View.GONE
+            )
         }
     }
 
@@ -84,61 +82,64 @@ class MonitorNotificationViewFactory @Inject constructor(
         setTextViewText(R.id.device, device.getLabel(context))
     }
 
-    fun createBigContentView(device: PodDevice): RemoteViews = when (device) {
-        is DualPodDevice -> createDualPodsBig(device)
-        is SinglePodDevice -> createSinglePodBig(device)
+    fun createBigContentView(device: PodDevice): RemoteViews = when {
+        device.hasDualPods -> createDualPodsBig(device)
+        device.model != PodModel.UNKNOWN -> createSinglePodBig(device)
         else -> createUnknownDeviceBig(device)
     }
 
-    private fun createDualPodsBig(device: DualPodDevice): RemoteViews = RemoteViews(
+    private fun createDualPodsBig(device: PodDevice): RemoteViews = RemoteViews(
         context.packageName,
         R.layout.monitor_notification_dual_pods_big
     ).apply {
         // Left
-        val leftPercent = device.batteryLeftPodPercent
+        val leftPercent = device.batteryLeft
         setImageViewResource(R.id.pod_left_icon, device.leftPodIcon)
         setProgressBar(R.id.pod_left_progress, 100, percentToInt(leftPercent), false)
         setTextViewText(R.id.pod_left_label, formatBatteryPercent(context, leftPercent))
-        val isLeftPodCharging = (device as? HasChargeDetectionDual)?.isLeftPodCharging ?: false
+        val isLeftPodCharging = device.isLeftPodCharging ?: false
         setViewVisibility(R.id.pod_left_charging, if (isLeftPodCharging) View.VISIBLE else View.GONE)
-        val isLeftPodInEar = (device as? HasEarDetectionDual)?.isLeftPodInEar ?: false
+        val isLeftPodInEar = device.isLeftInEar ?: false
         setViewVisibility(R.id.pod_left_ear, if (isLeftPodInEar) View.VISIBLE else View.GONE)
 
         // Case
-        setViewVisibility(R.id.pod_case_container, if (device is HasCase) View.VISIBLE else View.GONE)
-        (device as? HasCase)?.let { case ->
+        setViewVisibility(R.id.pod_case_container, if (device.hasCase) View.VISIBLE else View.GONE)
+        if (device.hasCase) {
             setImageViewResource(R.id.pod_case_icon, device.caseIcon)
-            val casePercent = case.batteryCasePercent
+            val casePercent = device.batteryCase
             setProgressBar(R.id.pod_case_progress, 100, percentToInt(casePercent), false)
             setTextViewText(R.id.pod_case_label, formatBatteryPercent(context, casePercent))
-            setViewVisibility(R.id.pod_case_charging, if (case.isCaseCharging) View.VISIBLE else View.GONE)
+            setViewVisibility(R.id.pod_case_charging, if (device.isCaseCharging == true) View.VISIBLE else View.GONE)
         }
 
         // Right
-        val rightPercent = device.batteryRightPodPercent
+        val rightPercent = device.batteryRight
         setImageViewResource(R.id.pod_right_icon, device.rightPodIcon)
         setProgressBar(R.id.pod_right_progress, 100, percentToInt(rightPercent), false)
         setTextViewText(R.id.pod_right_label, formatBatteryPercent(context, rightPercent))
-        val isRightPodCharging = (device as? HasChargeDetectionDual)?.isRightPodCharging ?: false
+        val isRightPodCharging = device.isRightPodCharging ?: false
         setViewVisibility(R.id.pod_right_charging, if (isRightPodCharging) View.VISIBLE else View.GONE)
-        val isRightPodInEar = (device as? HasEarDetectionDual)?.isRightPodInEar ?: false
+        val isRightPodInEar = device.isRightInEar ?: false
         setViewVisibility(R.id.pod_right_ear, if (isRightPodInEar) View.VISIBLE else View.GONE)
     }
 
-    private fun createSinglePodBig(device: SinglePodDevice): RemoteViews = RemoteViews(
+    private fun createSinglePodBig(device: PodDevice): RemoteViews = RemoteViews(
         context.packageName,
         R.layout.monitor_notification_single_pods_big
     ).apply {
-        val headsetPercent = device.batteryHeadsetPercent
+        val headsetPercent = device.batteryHeadset
         setTextViewText(R.id.headphones_label, device.getLabel(context))
         setImageViewResource(R.id.headphones_icon, device.iconRes)
         setProgressBar(R.id.headphones_battery_progress, 100, percentToInt(headsetPercent), false)
         setTextViewText(R.id.headphones_battery_label, formatBatteryPercent(context, headsetPercent))
-        if (device is HasEarDetection) {
-            setViewVisibility(R.id.headphones_worn, if (device.isBeingWorn) View.VISIBLE else View.GONE)
+        if (device.hasEarDetection) {
+            setViewVisibility(R.id.headphones_worn, if (device.isBeingWorn == true) View.VISIBLE else View.GONE)
         }
-        if (device is HasChargeDetectionDual) {
-            setViewVisibility(R.id.headphones_charging, if (device.isHeadsetBeingCharged) View.VISIBLE else View.GONE)
+        if (device.isHeadsetBeingCharged != null) {
+            setViewVisibility(
+                R.id.headphones_charging,
+                if (device.isHeadsetBeingCharged == true) View.VISIBLE else View.GONE
+            )
         }
     }
 
@@ -154,4 +155,4 @@ class MonitorNotificationViewFactory @Inject constructor(
         return (percent * 100).roundToInt().coerceIn(0, 100)
     }
 
-}
+}

app/src/main/java/eu/darken/capod/monitor/ui/MonitorNotifications.kt

@@ -15,13 +15,9 @@ import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.notifications.PendingIntentCompat
 import eu.darken.capod.main.ui.MainActivity
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.HasCase
-import eu.darken.capod.pods.core.HasChargeDetection
-import eu.darken.capod.pods.core.HasEarDetection
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.SinglePodDevice
-import eu.darken.capod.pods.core.formatBatteryPercent
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.ble.formatBatteryPercent
 import javax.inject.Inject
 
 
@@ -57,7 +53,11 @@ class MonitorNotifications @Inject constructor(
             setOngoing(true)
         }
 
-    private fun getBuilder(device: PodDevice?, channelId: String, showHint: Boolean = false): NotificationCompat.Builder {
+    private fun getBuilder(
+        device: PodDevice?,
+        channelId: String,
+        showHint: Boolean = false
+    ): NotificationCompat.Builder {
         if (device == null) {
             return baseBuilder(channelId).apply {
                 if (showHint) {
@@ -75,59 +75,42 @@ class MonitorNotifications @Inject constructor(
 
         return baseBuilder(channelId).apply {
 
-            // Options here should be mutually exclusive, and are prioritized by their order of importance
-            // Some options are omitted here, as they will conflict with other options
-            // TODO: Implement a settings pane to allow user to customize this
             val stateText = when {
-                // Pods charging state
-                // This goes first as pods should not be worn if it is still charging
-                device is HasChargeDetection && device.isHeadsetBeingCharged -> {
+                device.isHeadsetBeingCharged == true -> {
                     context.getString(R.string.pods_charging_label)
                 }
 
-                // Pods wear state
-                device is HasEarDetection -> {
-                    if (device.isBeingWorn) context.getString(R.string.headset_being_worn_label)
+                device.hasEarDetection -> {
+                    if (device.isBeingWorn == true) context.getString(R.string.headset_being_worn_label)
                     else context.getString(R.string.headset_not_being_worn_label)
                 }
 
-                // Case charge state
-                // This is under pods wear state as we don't want it conflicting with it
-                device is HasCase && device.isCaseCharging -> {
+                device.hasCase && device.isCaseCharging == true -> {
                     context.getString(R.string.pods_charging_label)
                 }
 
                 else -> context.getString(R.string.pods_case_unknown_state)
             }
 
-            val batteryText = when (device) {
-                is DualPodDevice -> {
-                    val leftPercent = device.batteryLeftPodPercent
-                    val rightPercent = device.batteryRightPodPercent
-                    val left = formatBatteryPercent(context, leftPercent)
-                    val right = formatBatteryPercent(context, rightPercent)
-                    when {
-                        device is HasCase -> {
-                            val casePercent = device.batteryCasePercent
-                            val case = formatBatteryPercent(context, casePercent)
-                            "$left $case $right"
-                        }
-
-                        else -> "$left $right"
+            val batteryText = when {
+                device.hasDualPods -> {
+                    val left = formatBatteryPercent(context, device.batteryLeft)
+                    val right = formatBatteryPercent(context, device.batteryRight)
+                    if (device.hasCase) {
+                        val case = formatBatteryPercent(context, device.batteryCase)
+                        "$left $case $right"
+                    } else {
+                        "$left $right"
                     }
                 }
 
-                is SinglePodDevice -> {
-                    val headsetPercent = device.batteryHeadsetPercent
-                    val headset = formatBatteryPercent(context, headsetPercent)
-                    when {
-                        device is HasCase -> {
-                            val casePercent = device.batteryCasePercent
-                            val case = formatBatteryPercent(context, casePercent)
-                            "$headset $case"
-                        }
-
-                        else -> headset
+                device.model != PodModel.UNKNOWN -> {
+                    val headset = formatBatteryPercent(context, device.batteryHeadset)
+                    if (device.hasCase) {
+                        val case = formatBatteryPercent(context, device.batteryCase)
+                        "$headset $case"
+                    } else {
+                        headset
                     }
                 }
 

app/src/main/java/eu/darken/capod/pods/core/PodDevice.kt

@@ -1,190 +0,0 @@
-package eu.darken.capod.pods.core
-
-import android.content.Context
-import androidx.annotation.DrawableRes
-import eu.darken.capod.R
-import eu.darken.capod.common.bluetooth.BleScanResult
-import eu.darken.capod.common.bluetooth.BluetoothAddress
-import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
-import eu.darken.capod.common.debug.logging.log
-import eu.darken.capod.profiles.core.DeviceProfile
-import kotlinx.serialization.SerialName
-import kotlinx.serialization.Serializable
-import java.time.Duration
-import java.time.Instant
-import java.util.UUID
-import kotlin.math.abs
-import kotlin.math.max
-
-interface PodDevice {
-
-    val identifier: Id
-
-    val model: Model
-
-    val address: BluetoothAddress
-        get() = scanResult.address
-
-    val seenLastAt: Instant
-
-    val seenFirstAt: Instant
-
-    val seenCounter: Int
-
-    val scanResult: BleScanResult
-
-    val rssi: Int
-        get() = scanResult.rssi
-
-    val reliability: Float
-
-    val signalQuality: Float
-        get() {
-            /**
-             * This is not correct but it works ¯\_(ツ)_/¯
-             * The range of the RSSI is device specific (ROMs).
-             */
-            val sqRssi = ((100 - abs(rssi)) / 100f)
-            val sqReliability = max(BASE_CONFIDENCE, reliability)
-            val sqAge = (Duration.between(seenFirstAt, Instant.now()).toMinutes().coerceAtMost(60) / 60f) * 0.25f
-            log(VERBOSE) { "Signal Quality ($address): rssi=$sqRssi, reliability=$reliability, age=$sqAge" }
-            return (sqRssi + sqReliability + sqAge) / 2f
-        }
-
-    val rawData: Map<Int, ByteArray>
-        get() = scanResult.manufacturerSpecificData
-
-    val rawDataHex: List<String>
-        get() = rawData.entries.map { entry ->
-            "${entry.key}: ${entry.value.joinToString(separator = " ") { String.format("%02X", it) }}"
-        }
-
-    interface Meta {
-        val profile: DeviceProfile?
-    }
-
-    val meta: Meta
-
-    fun getLabel(context: Context): String = model.label
-
-    @get:DrawableRes
-    val iconRes: Int
-        get() = model.iconRes
-
-    @JvmInline
-    value class Id(private val id: UUID = UUID.randomUUID())
-
-    @Serializable
-    enum class Model(
-        val label: String,
-        @DrawableRes val iconRes: Int = R.drawable.device_earbuds_generic_both,
-    ) {
-        @SerialName("airpods.gen1") AIRPODS_GEN1(
-            label = "AirPods (Gen 1)",
-            iconRes = R.drawable.device_airpods_gen1_both,
-        ),
-        @SerialName("airpods.gen2") AIRPODS_GEN2(
-            "AirPods (Gen 2)",
-            R.drawable.device_airpods_gen1_both,
-        ),
-        @SerialName("airpods.gen3") AIRPODS_GEN3(
-            "AirPods (Gen 3)",
-            R.drawable.device_airpods_gen3_both,
-        ),
-        @SerialName("airpods.gen4") AIRPODS_GEN4(
-            "AirPods (Gen 4)",
-            R.drawable.device_airpods_gen3_both,
-        ),
-        @SerialName("airpods.gen4.anc") AIRPODS_GEN4_ANC(
-            "AirPods (Gen 4 ANC)",
-            R.drawable.device_airpods_gen4anc_both,
-        ),
-        @SerialName("airpods.pro") AIRPODS_PRO(
-            "AirPods Pro",
-            R.drawable.device_airpods_pro2_both
-        ),
-        @SerialName("airpods.pro2") AIRPODS_PRO2(
-            "AirPods Pro 2",
-            R.drawable.device_airpods_pro2_both
-        ),
-        @SerialName("airpods.pro2.usbc") AIRPODS_PRO2_USBC(
-            "AirPods Pro 2 USB-C",
-            R.drawable.device_airpods_pro2_both
-        ),
-        @SerialName("airpods.pro3") AIRPODS_PRO3(
-            "AirPods Pro 3",
-            R.drawable.device_airpods_pro2_both
-        ),
-        @SerialName("airpods.max") AIRPODS_MAX(
-            "AirPods Max",
-            R.drawable.device_airpods_max
-        ),
-        @SerialName("airpods.max.usbc") AIRPODS_MAX_USBC(
-            "AirPods Max USB-C",
-            R.drawable.device_airpods_max
-        ),
-        @SerialName("beats.flex") BEATS_FLEX(
-            "Beats Flex",
-            R.drawable.device_beats_earbuds,
-        ),
-        @SerialName("beats.solo.3") BEATS_SOLO_3(
-            "Beats Solo 3",
-            R.drawable.device_beats_headphones,
-        ),
-        @SerialName("beats.studio.3") BEATS_STUDIO_3(
-            "Beats Studio 3",
-            R.drawable.device_beats_studio3,
-        ),
-        @SerialName("beats.x") BEATS_X(
-            "Beats X",
-            R.drawable.device_beats_x,
-        ),
-        @SerialName("beats.powerbeats.3") POWERBEATS_3(
-            "Power Beats 3",
-            R.drawable.device_powerbeats_3,
-        ),
-        @SerialName("beats.powerbeats.4") POWERBEATS_4(
-            "Power Beats 4",
-            R.drawable.device_powerbeats_4,
-        ),
-        @SerialName("beats.powerbeats.pro") POWERBEATS_PRO(
-            "Power Beats Pro",
-            R.drawable.device_powerbeats_pro_both,
-        ),
-        @SerialName("beats.powerbeats.pro2") POWERBEATS_PRO2(
-            "Power Beats Pro 2",
-            R.drawable.device_powerbeats_pro2_both,
-        ),
-        @SerialName("beats.fit.pro") BEATS_FIT_PRO(
-            "Beats Fit Pro",
-            R.drawable.device_beats_fitpro_both,
-        ),
-        @SerialName("fakes.tws.i99999") FAKE_AIRPODS_GEN1(
-            "AirPods (Gen 1)? \uD83C\uDFAD",
-            R.drawable.device_airpods_gen1_both,
-        ),
-        @SerialName("fakes.generic.airpods.gen2") FAKE_AIRPODS_GEN2(
-            "AirPods (Gen 2)? \uD83C\uDFAD",
-            R.drawable.device_airpods_gen1_both,
-        ),
-        @SerialName("fakes.generic.airpods.gen3") FAKE_AIRPODS_GEN3(
-            "AirPods (Gen 3)? \uD83C\uDFAD",
-            R.drawable.device_airpods_gen3_both,
-        ),
-        @SerialName("fakes.varunr.airpodspro") FAKE_AIRPODS_PRO(
-            "AirPods Pro? \uD83C\uDFAD",
-            R.drawable.device_airpods_pro2_both,
-        ),
-        @SerialName("fakes.generic.airpods.pro2") FAKE_AIRPODS_PRO2(
-            "AirPods Pro2? \uD83C\uDFAD",
-            R.drawable.device_airpods_pro2_both,
-        ),
-        @SerialName("unknown") UNKNOWN(
-            "Unknown"
-        );
-    }
-
-    companion object {
-        const val BASE_CONFIDENCE = 0.0f
-    }
-}

app/src/main/java/eu/darken/capod/pods/core/SinglePodDevice.kt

@@ -1,6 +0,0 @@
-package eu.darken.capod.pods.core
-
-interface SinglePodDevice : PodDevice {
-
-    val batteryHeadsetPercent: Float?
-}

app/src/main/java/eu/darken/capod/pods/core/apple/AppleFactoryModule.kt

@@ -1,66 +0,0 @@
-package eu.darken.capod.pods.core.apple
-
-import dagger.Binds
-import dagger.Module
-import dagger.hilt.InstallIn
-import dagger.hilt.components.SingletonComponent
-import dagger.multibindings.IntoSet
-import eu.darken.capod.pods.core.apple.airpods.AirPodsGen1
-import eu.darken.capod.pods.core.apple.airpods.AirPodsGen2
-import eu.darken.capod.pods.core.apple.airpods.AirPodsGen3
-import eu.darken.capod.pods.core.apple.airpods.AirPodsGen4
-import eu.darken.capod.pods.core.apple.airpods.AirPodsGen4Anc
-import eu.darken.capod.pods.core.apple.airpods.AirPodsMax
-import eu.darken.capod.pods.core.apple.airpods.AirPodsMaxUsbc
-import eu.darken.capod.pods.core.apple.airpods.AirPodsPro
-import eu.darken.capod.pods.core.apple.airpods.AirPodsPro2
-import eu.darken.capod.pods.core.apple.airpods.AirPodsPro2Usbc
-import eu.darken.capod.pods.core.apple.airpods.AirPodsPro3
-import eu.darken.capod.pods.core.apple.beats.BeatsFitPro
-import eu.darken.capod.pods.core.apple.beats.BeatsFlex
-import eu.darken.capod.pods.core.apple.beats.BeatsSolo3
-import eu.darken.capod.pods.core.apple.beats.BeatsStudio3
-import eu.darken.capod.pods.core.apple.beats.BeatsX
-import eu.darken.capod.pods.core.apple.beats.PowerBeats3
-import eu.darken.capod.pods.core.apple.beats.PowerBeats4
-import eu.darken.capod.pods.core.apple.beats.PowerBeatsPro
-import eu.darken.capod.pods.core.apple.beats.PowerBeatsPro2
-import eu.darken.capod.pods.core.apple.misc.FakeAirPodsGen1
-import eu.darken.capod.pods.core.apple.misc.FakeAirPodsGen2
-import eu.darken.capod.pods.core.apple.misc.FakeAirPodsGen3
-import eu.darken.capod.pods.core.apple.misc.FakeAirPodsPro
-import eu.darken.capod.pods.core.apple.misc.FakeAirPodsPro2
-
-@InstallIn(SingletonComponent::class)
-@Module
-abstract class AppleFactoryModule {
-
-    @Binds @IntoSet abstract fun airPodsGen1(factory: AirPodsGen1.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsGen2(factory: AirPodsGen2.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsGen3(factory: AirPodsGen3.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsGen4(factory: AirPodsGen4.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsGen4Anc(factory: AirPodsGen4Anc.Factory): ApplePodsFactory
-
-    @Binds @IntoSet abstract fun airPodsPro(factory: AirPodsPro.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsPro2(factory: AirPodsPro2.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsPro2Usbc(factory: AirPodsPro2Usbc.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsPro3(factory: AirPodsPro3.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsMax(factory: AirPodsMax.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun airPodsMax2(factory: AirPodsMaxUsbc.Factory): ApplePodsFactory
-
-    @Binds @IntoSet abstract fun beatsFlex(factory: BeatsFlex.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun beatsSolo3(factory: BeatsSolo3.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun beatsStudio3(factory: BeatsStudio3.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun beatsX(factory: BeatsX.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun powerBeats3(factory: PowerBeats3.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun powerBeats4(factory: PowerBeats4.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun powerBeatsPro(factory: PowerBeatsPro.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun powerBeatsPro2(factory: PowerBeatsPro2.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun beatsFitPro(factory: BeatsFitPro.Factory): ApplePodsFactory
-
-    @Binds @IntoSet abstract fun fakeAirPodsGen1(factory: FakeAirPodsGen1.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun fakeAirPodsGen2(factory: FakeAirPodsGen2.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun fakeAirPodsGen3(factory: FakeAirPodsGen3.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun fakeAirPodsPro(factory: FakeAirPodsPro.Factory): ApplePodsFactory
-    @Binds @IntoSet abstract fun fakeAirPodsPro2(factory: FakeAirPodsPro2.Factory): ApplePodsFactory
-}

app/src/main/java/eu/darken/capod/pods/core/apple/PodModel.kt

@@ -0,0 +1,532 @@
+package eu.darken.capod.pods.core.apple
+
+import androidx.annotation.DrawableRes
+import eu.darken.capod.R
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+enum class PodModel(
+    val label: String,
+    @DrawableRes val iconRes: Int = R.drawable.device_earbuds_generic_both,
+    val features: Features = Features(),
+    val modelNumbers: Set<String> = emptySet(),
+    @DrawableRes val leftPodIconRes: Int? = null,
+    @DrawableRes val rightPodIconRes: Int? = null,
+    @DrawableRes val caseIconRes: Int? = null,
+) {
+    @SerialName("airpods.gen1")
+    AIRPODS_GEN1(
+        "AirPods (Gen 1)",
+        R.drawable.device_airpods_gen1_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        modelNumbers = setOf("A1523", "A1722"), // L/R earphones
+        leftPodIconRes = R.drawable.device_airpods_gen1_left,
+        rightPodIconRes = R.drawable.device_airpods_gen1_right,
+        caseIconRes = R.drawable.device_airpods_gen1_case,
+    ),
+
+    @SerialName("airpods.gen2")
+    AIRPODS_GEN2(
+        "AirPods (Gen 2)",
+        R.drawable.device_airpods_gen1_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        modelNumbers = setOf("A2031", "A2032"), // L/R earphones
+        leftPodIconRes = R.drawable.device_airpods_gen1_left,
+        rightPodIconRes = R.drawable.device_airpods_gen1_right,
+        caseIconRes = R.drawable.device_airpods_gen1_case,
+    ),
+
+    @SerialName("airpods.gen3")
+    AIRPODS_GEN3(
+        "AirPods (Gen 3)",
+        R.drawable.device_airpods_gen3_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        modelNumbers = setOf("A2564", "A2565"), // L/R earphones
+        leftPodIconRes = R.drawable.device_airpods_gen3_left,
+        rightPodIconRes = R.drawable.device_airpods_gen3_right,
+        caseIconRes = R.drawable.device_airpods_gen3_case,
+    ),
+
+    @SerialName("airpods.gen4")
+    AIRPODS_GEN4(
+        "AirPods (Gen 4)",
+        R.drawable.device_airpods_gen3_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasMicrophoneMode = true,
+            hasEarDetectionToggle = true,
+            hasSleepDetection = true,
+        ),
+        modelNumbers = setOf("A3050", "A3053", "A3054"), // earphones
+        leftPodIconRes = R.drawable.device_airpods_gen3_left,
+        rightPodIconRes = R.drawable.device_airpods_gen3_right,
+        caseIconRes = R.drawable.device_airpods_gen3_case,
+    ),
+
+    @SerialName("airpods.gen4.anc")
+    AIRPODS_GEN4_ANC(
+        "AirPods (Gen 4 ANC)",
+        R.drawable.device_airpods_gen4anc_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasAdaptiveAnc = true,
+            hasConversationAwareness = true,
+            hasNcOneAirpod = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasPersonalizedVolume = true,
+            hasToneVolume = true,
+            hasEndCallMuteMic = true,
+            hasAdaptiveAudioNoise = true,
+            hasMicrophoneMode = true,
+            hasEarDetectionToggle = true,
+            hasListeningModeCycle = true,
+            hasAllowOffOption = true,
+            hasStemConfig = true,
+            hasSleepDetection = true,
+            needsInitExt = true,
+        ),
+        modelNumbers = setOf("A3055", "A3056", "A3057"), // earphones
+        leftPodIconRes = R.drawable.device_airpods_gen4anc_left,
+        rightPodIconRes = R.drawable.device_airpods_gen4anc_right,
+        caseIconRes = R.drawable.device_airpods_gen4anc_case,
+    ),
+
+    @SerialName("airpods.pro")
+    AIRPODS_PRO(
+        "AirPods Pro",
+        R.drawable.device_airpods_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasNcOneAirpod = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasToneVolume = true,
+            hasEndCallMuteMic = true,
+            hasMicrophoneMode = true,
+            hasEarDetectionToggle = true,
+            hasListeningModeCycle = true,
+            hasAllowOffOption = true,
+        ),
+        modelNumbers = setOf("A2083", "A2084"), // L/R earphones
+        leftPodIconRes = R.drawable.device_airpods_pro2_left,
+        rightPodIconRes = R.drawable.device_airpods_pro2_right,
+        caseIconRes = R.drawable.device_airpods_pro2_case,
+    ),
+
+    @SerialName("airpods.pro2")
+    AIRPODS_PRO2(
+        "AirPods Pro 2",
+        R.drawable.device_airpods_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasAdaptiveAnc = true,
+            hasConversationAwareness = true,
+            hasNcOneAirpod = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasVolumeSwipe = true,
+            hasVolumeSwipeLength = true,
+            hasPersonalizedVolume = true,
+            hasToneVolume = true,
+            hasEndCallMuteMic = true,
+            hasAdaptiveAudioNoise = true,
+            hasMicrophoneMode = true,
+            hasEarDetectionToggle = true,
+            hasListeningModeCycle = true,
+            hasAllowOffOption = true,
+            hasStemConfig = true,
+            hasSleepDetection = true,
+            needsInitExt = true,
+        ),
+        modelNumbers = setOf("A2698", "A2699", "A2931"), // earphones
+        leftPodIconRes = R.drawable.device_airpods_pro2_left,
+        rightPodIconRes = R.drawable.device_airpods_pro2_right,
+        caseIconRes = R.drawable.device_airpods_pro2_case,
+    ),
+
+    @SerialName("airpods.pro2.usbc")
+    AIRPODS_PRO2_USBC(
+        "AirPods Pro 2 USB-C",
+        R.drawable.device_airpods_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasAdaptiveAnc = true,
+            hasConversationAwareness = true,
+            hasNcOneAirpod = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasVolumeSwipe = true,
+            hasVolumeSwipeLength = true,
+            hasPersonalizedVolume = true,
+            hasToneVolume = true,
+            hasEndCallMuteMic = true,
+            hasAdaptiveAudioNoise = true,
+            hasMicrophoneMode = true,
+            hasEarDetectionToggle = true,
+            hasListeningModeCycle = true,
+            hasAllowOffOption = true,
+            hasStemConfig = true,
+            hasSleepDetection = true,
+            needsInitExt = true,
+        ),
+        modelNumbers = setOf("A3047", "A3048", "A3049"), // earphones
+        leftPodIconRes = R.drawable.device_airpods_pro2_left,
+        rightPodIconRes = R.drawable.device_airpods_pro2_right,
+        caseIconRes = R.drawable.device_airpods_pro2_case,
+    ),
+
+    @SerialName("airpods.pro3")
+    AIRPODS_PRO3(
+        "AirPods Pro 3",
+        R.drawable.device_airpods_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasAdaptiveAnc = true,
+            hasConversationAwareness = true,
+            hasNcOneAirpod = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasVolumeSwipe = true,
+            hasVolumeSwipeLength = true,
+            hasPersonalizedVolume = true,
+            hasToneVolume = true,
+            hasEndCallMuteMic = true,
+            hasAdaptiveAudioNoise = true,
+            hasMicrophoneMode = true,
+            hasEarDetectionToggle = true,
+            hasListeningModeCycle = true,
+            hasAllowOffOption = true,
+            hasStemConfig = true,
+            hasSleepDetection = true,
+            needsInitExt = true,
+        ),
+        modelNumbers = setOf("A3063", "A3064", "A3065"), // earphones
+        leftPodIconRes = R.drawable.device_airpods_pro2_left,
+        rightPodIconRes = R.drawable.device_airpods_pro2_right,
+        caseIconRes = R.drawable.device_airpods_pro2_case,
+    ),
+
+    @SerialName("airpods.max")
+    AIRPODS_MAX(
+        "AirPods Max",
+        R.drawable.device_airpods_max,
+        Features(
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasToneVolume = true,
+            hasEarDetectionToggle = true,
+        ),
+        modelNumbers = setOf("A2096"), // headphones
+    ),
+
+    @SerialName("airpods.max.usbc")
+    AIRPODS_MAX_USBC(
+        "AirPods Max USB-C",
+        R.drawable.device_airpods_max,
+        Features(
+            hasEarDetection = true,
+            hasAncControl = true,
+            hasPressSpeed = true,
+            hasPressHoldDuration = true,
+            hasToneVolume = true,
+            hasEarDetectionToggle = true,
+        ),
+        modelNumbers = setOf("A3184"), // headphones
+    ),
+
+    @SerialName("beats.flex")
+    BEATS_FLEX(
+        "Beats Flex",
+        R.drawable.device_beats_earbuds,
+        modelNumbers = setOf("A2295"),
+    ),
+
+    @SerialName("beats.solo.3")
+    BEATS_SOLO_3(
+        "Beats Solo 3",
+        R.drawable.device_beats_headphones,
+        modelNumbers = setOf("A1796"), // headphones
+    ),
+
+    @SerialName("beats.solo.pro")
+    BEATS_SOLO_PRO(
+        "Beats Solo Pro",
+        R.drawable.device_beats_headphones,
+        Features(
+            hasEarDetection = true,
+            hasAncControl = true,
+        ),
+        modelNumbers = setOf("A1881"), // headphones
+    ),
+
+    @SerialName("beats.solo.4")
+    BEATS_SOLO_4(
+        "Beats Solo 4",
+        R.drawable.device_beats_headphones,
+        modelNumbers = setOf("A3140"), // headphones
+    ),
+
+    @SerialName("beats.solo.buds")
+    BEATS_SOLO_BUDS(
+        "Beats Solo Buds",
+        R.drawable.device_beats_earbuds,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        modelNumbers = setOf("A3150", "A3151", "A3153"), // L/R earbuds + case
+    ),
+
+    @SerialName("beats.studio.3")
+    BEATS_STUDIO_3(
+        "Beats Studio 3",
+        R.drawable.device_beats_studio3,
+        Features(
+            hasEarDetection = true,
+            hasAncControl = true,
+        ),
+        modelNumbers = setOf("A1914"), // headphones
+    ),
+
+    @SerialName("beats.studio.buds")
+    BEATS_STUDIO_BUDS(
+        "Beats Studio Buds",
+        R.drawable.device_beats_earbuds,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasAncControl = true,
+        ),
+        modelNumbers = setOf("A2512", "A2513", "A2514"), // L/R earbuds + case
+    ),
+
+    @SerialName("beats.studio.buds.plus")
+    BEATS_STUDIO_BUDS_PLUS(
+        "Beats Studio Buds+",
+        R.drawable.device_beats_earbuds,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasAncControl = true,
+        ),
+        modelNumbers = setOf("A2871", "A2872", "A2952"), // L/R earbuds + case
+    ),
+
+    @SerialName("beats.studio.pro")
+    BEATS_STUDIO_PRO(
+        "Beats Studio Pro",
+        R.drawable.device_beats_headphones,
+        Features(hasAncControl = true),
+        modelNumbers = setOf("A2924"), // headphones
+    ),
+
+    @SerialName("beats.x")
+    BEATS_X(
+        "Beats X",
+        R.drawable.device_beats_x,
+        modelNumbers = setOf("A1763"),
+    ),
+
+    @SerialName("beats.powerbeats.3")
+    POWERBEATS_3(
+        "Power Beats 3",
+        R.drawable.device_powerbeats_3,
+        modelNumbers = setOf("A1747"),
+    ),
+
+    @SerialName("beats.powerbeats.4")
+    POWERBEATS_4(
+        "Power Beats 4",
+        R.drawable.device_powerbeats_4,
+        modelNumbers = setOf("A2015"),
+    ),
+
+    @SerialName("beats.powerbeats.pro")
+    POWERBEATS_PRO(
+        "Power Beats Pro",
+        R.drawable.device_powerbeats_pro_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+        ),
+        modelNumbers = setOf("A2047", "A2048", "A2453", "A2454"), // L/R earbuds, 2019 + 2020 revisions
+        leftPodIconRes = R.drawable.device_powerbeats_pro_left,
+        rightPodIconRes = R.drawable.device_powerbeats_pro_right,
+        caseIconRes = R.drawable.device_powerbeats_pro_case,
+    ),
+
+    @SerialName("beats.powerbeats.pro2")
+    POWERBEATS_PRO2(
+        "Power Beats Pro 2",
+        R.drawable.device_powerbeats_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+        ),
+        modelNumbers = setOf("A3157", "A3158", "A3159"), // L/R earbuds + case
+        leftPodIconRes = R.drawable.device_powerbeats_pro2_left,
+        rightPodIconRes = R.drawable.device_powerbeats_pro2_right,
+        caseIconRes = R.drawable.device_powerbeats_pro2_case,
+    ),
+
+    @SerialName("beats.fit.pro")
+    BEATS_FIT_PRO(
+        "Beats Fit Pro",
+        R.drawable.device_beats_fitpro_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+        ),
+        modelNumbers = setOf("A2576", "A2577", "A2578"), // L/R earbuds + case
+        leftPodIconRes = R.drawable.device_beats_fitpro_left,
+        rightPodIconRes = R.drawable.device_beats_fitpro_right,
+        caseIconRes = R.drawable.device_beats_fitpro_case,
+    ),
+
+    @SerialName("fakes.tws.i99999")
+    FAKE_AIRPODS_GEN1(
+        "AirPods (Gen 1)? \uD83C\uDFAD",
+        R.drawable.device_airpods_gen1_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        leftPodIconRes = R.drawable.device_airpods_gen1_left,
+        rightPodIconRes = R.drawable.device_airpods_gen1_right,
+        caseIconRes = R.drawable.device_airpods_gen1_case,
+    ),
+
+    @SerialName("fakes.generic.airpods.gen2")
+    FAKE_AIRPODS_GEN2(
+        "AirPods (Gen 2)? \uD83C\uDFAD",
+        R.drawable.device_airpods_gen1_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        leftPodIconRes = R.drawable.device_airpods_gen1_left,
+        rightPodIconRes = R.drawable.device_airpods_gen1_right,
+        caseIconRes = R.drawable.device_airpods_gen1_case,
+    ),
+
+    @SerialName("fakes.generic.airpods.gen3")
+    FAKE_AIRPODS_GEN3(
+        "AirPods (Gen 3)? \uD83C\uDFAD",
+        R.drawable.device_airpods_gen3_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+        ),
+        leftPodIconRes = R.drawable.device_airpods_gen3_left,
+        rightPodIconRes = R.drawable.device_airpods_gen3_right,
+        caseIconRes = R.drawable.device_airpods_gen3_case,
+    ),
+
+    @SerialName("fakes.varunr.airpodspro")
+    FAKE_AIRPODS_PRO(
+        "AirPods Pro? \uD83C\uDFAD",
+        R.drawable.device_airpods_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+        ),
+        leftPodIconRes = R.drawable.device_airpods_pro2_left,
+        rightPodIconRes = R.drawable.device_airpods_pro2_right,
+        caseIconRes = R.drawable.device_airpods_pro2_case,
+    ),
+
+    @SerialName("fakes.generic.airpods.pro2")
+    FAKE_AIRPODS_PRO2(
+        "AirPods Pro2? \uD83C\uDFAD",
+        R.drawable.device_airpods_pro2_both,
+        Features(
+            hasDualPods = true,
+            hasCase = true,
+            hasEarDetection = true,
+            hasAncControl = true,
+        ),
+        leftPodIconRes = R.drawable.device_airpods_pro2_left,
+        rightPodIconRes = R.drawable.device_airpods_pro2_right,
+        caseIconRes = R.drawable.device_airpods_pro2_case,
+    ),
+
+    @SerialName("unknown")
+    UNKNOWN("Unknown"),
+    ;
+
+    companion object {
+        fun fromModelNumber(modelNumber: String): PodModel? {
+            val normalized = modelNumber.trim().uppercase()
+            if (normalized.isBlank()) return null
+            return entries.firstOrNull { entry ->
+                entry != UNKNOWN && !entry.name.startsWith("FAKE_") && normalized in entry.modelNumbers
+            }
+        }
+    }
+
+    data class Features(
+        // Physical form
+        val hasDualPods: Boolean = false,
+        val hasCase: Boolean = false,
+        val hasEarDetection: Boolean = false,
+        // ANC
+        val hasAncControl: Boolean = false,
+        val hasAdaptiveAnc: Boolean = false,
+        // AAP settings
+        val hasConversationAwareness: Boolean = false,
+        val hasNcOneAirpod: Boolean = false,
+        val hasPressSpeed: Boolean = false,
+        val hasPressHoldDuration: Boolean = false,
+        val hasVolumeSwipe: Boolean = false,
+        val hasVolumeSwipeLength: Boolean = false,
+        val hasPersonalizedVolume: Boolean = false,
+        val hasToneVolume: Boolean = false,
+        val hasEndCallMuteMic: Boolean = false,
+        val hasAdaptiveAudioNoise: Boolean = false,
+        val hasMicrophoneMode: Boolean = false,
+        val hasEarDetectionToggle: Boolean = false,
+        val hasListeningModeCycle: Boolean = false,
+        val hasAllowOffOption: Boolean = false,
+        val hasStemConfig: Boolean = false,
+        val hasSleepDetection: Boolean = false,
+        // Protocol
+        val needsInitExt: Boolean = false,
+    )
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/AapConnection.kt

@@ -0,0 +1,539 @@
+package eu.darken.capod.pods.core.apple.aap
+
+import android.annotation.SuppressLint
+import android.bluetooth.BluetoothDevice
+import android.bluetooth.BluetoothSocket
+import eu.darken.capod.common.bluetooth.l2cap.L2capSocketFactory
+import eu.darken.capod.common.debug.logging.Logging.Priority.ERROR
+import eu.darken.capod.common.debug.logging.Logging.Priority.INFO
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import kotlin.reflect.KClass
+import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
+import eu.darken.capod.pods.core.apple.aap.protocol.AapDeviceProfile
+import eu.darken.capod.pods.core.apple.aap.protocol.AapFramer
+import eu.darken.capod.pods.core.apple.aap.protocol.AapMessage
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import eu.darken.capod.pods.core.apple.aap.protocol.KeyExchangeResult
+import eu.darken.capod.pods.core.apple.aap.protocol.StemPressEvent
+import kotlinx.coroutines.channels.BufferOverflow
+import java.time.Instant
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withContext
+import java.io.IOException
+import java.nio.ByteBuffer
+import java.nio.charset.CharacterCodingException
+import java.nio.charset.CodingErrorAction
+
+/**
+ * Manages a single AAP L2CAP connection to a device.
+ * Internal — not exposed outside [AapConnectionManager].
+ */
+@SuppressLint("MissingPermission")
+internal class AapConnection(
+    private val device: BluetoothDevice,
+    private val profile: AapDeviceProfile,
+    private val socketFactory: L2capSocketFactory,
+    private val psm: Int = 0x1001,
+) {
+
+    private val _state = MutableStateFlow(AapPodState())
+    val state: StateFlow<AapPodState> = _state.asStateFlow()
+
+    private val _keysReceived = MutableSharedFlow<KeyExchangeResult>(extraBufferCapacity = 1)
+    val keysReceived: SharedFlow<KeyExchangeResult> = _keysReceived.asSharedFlow()
+
+    private val _stemPressEvents = MutableSharedFlow<StemPressEvent>(extraBufferCapacity = 8, onBufferOverflow = BufferOverflow.DROP_OLDEST)
+    val stemPressEvents: SharedFlow<StemPressEvent> = _stemPressEvents.asSharedFlow()
+
+    private var socket: BluetoothSocket? = null
+    private var readerJob: Job? = null
+    private val writeMutex = Mutex()
+    private val framer = AapFramer()
+
+    private var pendingAncMode: AapSetting.AncMode.Value? = null
+    private var ancDebounceJob: Job? = null
+    private var connectionScope: CoroutineScope? = null
+    private var lastAncCommandSentAt: Long = 0L
+    private var lastCommandedAncMode: AapSetting.AncMode.Value? = null
+    private var ancResendJob: Job? = null
+
+    /**
+     * Opens the L2CAP socket, sends the handshake, and launches the read loop.
+     * Returns after the handshake is sent — the read loop runs in [scope] independently.
+     */
+    suspend fun connect(scope: CoroutineScope) = withContext(Dispatchers.IO) {
+        if (_state.value.connectionState != AapPodState.ConnectionState.DISCONNECTED) {
+            throw IllegalStateException("connect() called in state ${_state.value.connectionState}")
+        }
+
+        connectionScope = scope
+        _state.value = _state.value.copy(connectionState = AapPodState.ConnectionState.CONNECTING)
+
+        try {
+            val sock = socketFactory.createSocket(device, psm)
+            sock.connect()
+            socket = sock
+            log(TAG) { "Connected to ${device.address}" }
+
+            _state.value = _state.value.copy(connectionState = AapPodState.ConnectionState.HANDSHAKING)
+
+            // Send handshake
+            val handshake = profile.encodeHandshake()
+            sock.outputStream.write(handshake)
+            sock.outputStream.flush()
+            log(TAG) { "Handshake sent" }
+
+            // Send notification enable packets — tells device to push battery/settings updates
+            for (packet in profile.encodeNotificationEnable()) {
+                sock.outputStream.write(packet)
+                sock.outputStream.flush()
+            }
+            log(TAG) { "Notification enable sent" }
+
+            // Send InitExt for models that need it (Pro 2/3/USB-C, AP4 ANC)
+            profile.encodeInitExt()?.let { initExt ->
+                sock.outputStream.write(initExt)
+                sock.outputStream.flush()
+                log(TAG) { "InitExt sent" }
+            }
+
+            // Request private keys (IRK + ENC) for BLE encrypted battery
+            profile.encodePrivateKeyRequest()?.let { keyReq ->
+                sock.outputStream.write(keyReq)
+                sock.outputStream.flush()
+                log(TAG) { "Private key request sent" }
+            }
+
+            // Launch read loop in the provided scope — connect() returns immediately
+            readerJob = scope.launch(Dispatchers.IO) { readLoop(sock) }
+        } catch (e: Exception) {
+            log(TAG, ERROR) { "Connection failed: $e" }
+            cleanupSocket()
+            _state.value = AapPodState(connectionState = AapPodState.ConnectionState.DISCONNECTED)
+            throw e
+        }
+    }
+
+    suspend fun disconnect() = withContext(Dispatchers.IO) {
+        log(TAG) { "Disconnecting" }
+        readerJob?.cancel()
+        readerJob = null
+        ancDebounceJob?.cancel()
+        ancDebounceJob = null
+        ancResendJob?.cancel()
+        ancResendJob = null
+        pendingAncMode = null
+        lastCommandedAncMode = null
+        connectionScope = null
+        cleanupSocket()
+        framer.reset()
+        _state.value = AapPodState(connectionState = AapPodState.ConnectionState.DISCONNECTED)
+    }
+
+    suspend fun send(command: AapCommand) {
+        val currentState = _state.value
+        if (currentState.connectionState != AapPodState.ConnectionState.READY) {
+            throw IllegalStateException("Cannot send command in state ${currentState.connectionState}")
+        }
+
+        if (command is AapCommand.SetAncMode) {
+            lastCommandedAncMode = command.mode
+            ancResendJob?.cancel()
+            ancResendJob = null
+            val earDetection = currentState.setting<AapSetting.EarDetection>()
+            if (earDetection != null && !earDetection.isEitherPodInEar) {
+                log(TAG) { "No pod in ear, queuing ANC mode: ${command.mode}" }
+                pendingAncMode = command.mode
+                _state.value = currentState.copy(pendingAncMode = command.mode)
+                return
+            }
+            pendingAncMode = null
+            // Optimistically update UI — don't wait for device echo
+            val currentAnc = currentState.setting<AapSetting.AncMode>()
+            if (currentAnc != null) {
+                _state.value = currentState
+                    .withSetting(AapSetting.AncMode::class, currentAnc.copy(current = command.mode))
+                    .copy(pendingAncMode = null, lastMessageAt = Instant.now())
+            } else {
+                _state.value = currentState.copy(pendingAncMode = null)
+            }
+        }
+
+        val preSendDeviceInfo = currentState.deviceInfo
+        applyOptimisticUpdate(currentState, command)
+        try {
+            sendRaw(command)
+        } catch (e: Exception) {
+            // Rollback is scoped to rename — the name is the one user-visible writable field
+            // that has no device echo to correct an incorrect optimistic update, so a failed
+            // send would otherwise leave the UI permanently lying about the device name.
+            if (command is AapCommand.SetDeviceName && preSendDeviceInfo != null) {
+                _state.value = _state.value.copy(deviceInfo = preSendDeviceInfo)
+            }
+            throw e
+        }
+    }
+
+    /**
+     * Optimistically update state for non-ANC settings so the UI reflects the change immediately.
+     * ANC is handled separately in [send] due to ear-detection gating.
+     * If the setting hasn't been reported by the device yet, skip (UI wouldn't show the toggle).
+     */
+    private fun applyOptimisticUpdate(baseState: AapPodState, command: AapCommand) {
+        val updated: Pair<KClass<out AapSetting>, AapSetting> = when (command) {
+            is AapCommand.SetAncMode -> return // Handled in send()
+            is AapCommand.SetConversationalAwareness -> {
+                val cur = baseState.setting<AapSetting.ConversationalAwareness>() ?: return
+                AapSetting.ConversationalAwareness::class to cur.copy(enabled = command.enabled)
+            }
+            is AapCommand.SetNcWithOneAirPod -> {
+                val cur = baseState.setting<AapSetting.NcWithOneAirPod>() ?: return
+                AapSetting.NcWithOneAirPod::class to cur.copy(enabled = command.enabled)
+            }
+            is AapCommand.SetVolumeSwipe -> {
+                val cur = baseState.setting<AapSetting.VolumeSwipe>() ?: return
+                AapSetting.VolumeSwipe::class to cur.copy(enabled = command.enabled)
+            }
+            is AapCommand.SetPersonalizedVolume -> {
+                val cur = baseState.setting<AapSetting.PersonalizedVolume>() ?: return
+                AapSetting.PersonalizedVolume::class to cur.copy(enabled = command.enabled)
+            }
+            is AapCommand.SetToneVolume -> {
+                baseState.setting<AapSetting.ToneVolume>() ?: return
+                AapSetting.ToneVolume::class to AapSetting.ToneVolume(level = command.level)
+            }
+            is AapCommand.SetAdaptiveAudioNoise -> {
+                baseState.setting<AapSetting.AdaptiveAudioNoise>() ?: return
+                AapSetting.AdaptiveAudioNoise::class to AapSetting.AdaptiveAudioNoise(level = command.level)
+            }
+            is AapCommand.SetPressSpeed -> {
+                baseState.setting<AapSetting.PressSpeed>() ?: return
+                AapSetting.PressSpeed::class to AapSetting.PressSpeed(value = command.value)
+            }
+            is AapCommand.SetPressHoldDuration -> {
+                baseState.setting<AapSetting.PressHoldDuration>() ?: return
+                AapSetting.PressHoldDuration::class to AapSetting.PressHoldDuration(value = command.value)
+            }
+            is AapCommand.SetVolumeSwipeLength -> {
+                baseState.setting<AapSetting.VolumeSwipeLength>() ?: return
+                AapSetting.VolumeSwipeLength::class to AapSetting.VolumeSwipeLength(value = command.value)
+            }
+            is AapCommand.SetEndCallMuteMic -> {
+                baseState.setting<AapSetting.EndCallMuteMic>() ?: return
+                AapSetting.EndCallMuteMic::class to AapSetting.EndCallMuteMic(muteMic = command.muteMic, endCall = command.endCall)
+            }
+            is AapCommand.SetMicrophoneMode -> {
+                AapSetting.MicrophoneMode::class to AapSetting.MicrophoneMode(mode = command.mode)
+            }
+            is AapCommand.SetEarDetectionEnabled -> {
+                AapSetting.EarDetectionEnabled::class to AapSetting.EarDetectionEnabled(enabled = command.enabled)
+            }
+            is AapCommand.SetListeningModeCycle -> {
+                AapSetting.ListeningModeCycle::class to AapSetting.ListeningModeCycle(modeMask = command.modeMask)
+            }
+            is AapCommand.SetAllowOffOption -> {
+                AapSetting.AllowOffOption::class to AapSetting.AllowOffOption(enabled = command.enabled)
+            }
+            is AapCommand.SetStemConfig -> {
+                AapSetting.StemConfig::class to AapSetting.StemConfig(claimedPressMask = command.claimedPressMask)
+            }
+            is AapCommand.SetSleepDetection -> {
+                AapSetting.SleepDetection::class to AapSetting.SleepDetection(enabled = command.enabled)
+            }
+            is AapCommand.SetDeviceName -> {
+                val currentInfo = baseState.deviceInfo ?: return
+                _state.value = baseState
+                    .copy(deviceInfo = currentInfo.copy(name = command.name), lastMessageAt = Instant.now())
+                return
+            }
+        }
+        _state.value = baseState.withSetting(updated.first, updated.second).copy(lastMessageAt = Instant.now())
+    }
+
+    private suspend fun sendRaw(command: AapCommand) {
+        val bytes = profile.encodeCommand(command)
+        writeMutex.withLock {
+            withContext(Dispatchers.IO) {
+                val sock = socket ?: throw IOException("Socket is null")
+                sock.outputStream.write(bytes)
+                sock.outputStream.flush()
+                if (command is AapCommand.SetAncMode) lastAncCommandSentAt = System.currentTimeMillis()
+                log(TAG) { "Sent command: $command (${bytes.size} bytes)" }
+            }
+        }
+    }
+
+    private suspend fun readLoop(sock: BluetoothSocket) = withContext(Dispatchers.IO) {
+        val buf = ByteArray(2048)
+        var handshakeResponseReceived = false
+
+        try {
+            while (isActive) {
+                val len = sock.inputStream.read(buf)
+                if (len == -1) {
+                    log(TAG) { "Stream closed by remote" }
+                    break
+                }
+
+                // L2CAP SEQPACKET: each read() returns exactly one complete message
+                val raw = buf.copyOfRange(0, len)
+                val message = AapMessage.Companion.parse(raw)
+                if (message != null) {
+                    processMessage(message)
+                    if (!handshakeResponseReceived && message.commandType != 0x0009) {
+                        handshakeResponseReceived = true
+                    }
+                }
+
+                // Transition to READY after processing first batch of messages
+                if (handshakeResponseReceived && _state.value.connectionState == AapPodState.ConnectionState.HANDSHAKING) {
+                    _state.value = _state.value.copy(connectionState = AapPodState.ConnectionState.READY)
+                    log(TAG) { "Connection READY" }
+                }
+            }
+        } catch (e: IOException) {
+            if (isActive) log(TAG, ERROR) { "Read error: $e" }
+        } finally {
+            ancDebounceJob?.cancel()
+            ancResendJob?.cancel()
+            pendingAncMode = null
+            lastCommandedAncMode = null
+            cleanupSocket()
+            _state.value = _state.value.copy(
+                connectionState = AapPodState.ConnectionState.DISCONNECTED,
+                pendingAncMode = null,
+            )
+        }
+    }
+
+    private fun processMessage(message: AapMessage) {
+        val hex = message.raw.joinToString(" ") { "%02X".format(it) }
+        log(TAG, VERBOSE) { "MSG cmd=0x${"%04X".format(message.commandType)} len=${message.raw.size} raw=$hex" }
+
+        // Issue #173: diagnostic dump of the 0x1D INFORMATION packet so testers with engraved AirPods
+        // can share a debug recording that reveals where (or whether) the engraving message lives.
+        // Runs unconditionally for 0x1D — not gated on decodeDeviceInfo success, since an engraving-
+        // shaped packet may not match the strict production decoder's expectations.
+        if (message.commandType == 0x001D) {
+            val segments = describeDeviceInfoSegments(message.payload)
+            log(TAG, INFO) { "DeviceInfoDump #173: payload=${message.payload.size} bytes, segments=${segments.size}" }
+            segments.forEach { seg ->
+                val label = when (seg.index) {
+                    0 -> "name"
+                    1 -> "modelNumber"
+                    2 -> "manufacturer"
+                    3 -> "serialNumber"
+                    4 -> "firmwareVersion"
+                    else -> "unknown"
+                }
+                val rendered = seg.utf8?.let { "\"$it\"" } ?: "<non-utf8>"
+                log(TAG, INFO) { "DeviceInfoDump #173: [${seg.index}] off=${seg.offset} len=${seg.length} ($label) $rendered hex=${seg.hex}" }
+            }
+        }
+
+        // Try stem press event (transient — emitted via SharedFlow, not stored in state)
+        profile.decodeStemPress(message)?.let { event ->
+            _stemPressEvents.tryEmit(event)
+            log(TAG) { "Stem press: ${event.pressType} ${event.bud}" }
+            return
+        }
+
+        // Try battery
+        profile.decodeBattery(message)?.let { batteries ->
+            // Filter DISCONNECTED entries (e.g. case reports 0% DISCONNECTED when pods are removed).
+            // Merge with existing state so previously-known values are preserved for absent slots.
+            val valid = batteries.filterValues { it.charging != AapPodState.ChargingState.DISCONNECTED }
+            _state.value = _state.value.copy(
+                batteries = _state.value.batteries + valid,
+                lastMessageAt = Instant.now(),
+            )
+            log(TAG) { "Battery update: ${batteries.entries.map { "${it.key}=${(it.value.percent * 100).toInt()}% ${it.value.charging}" }}" }
+            return
+        }
+
+        // Try private key response
+        profile.decodePrivateKeyResponse(message)?.let { keys ->
+            log(TAG) { "Private keys received: IRK=${keys.irk != null}, ENC=${keys.encKey != null}" }
+            _state.value = _state.value.copy(lastMessageAt = Instant.now())
+            _keysReceived.tryEmit(keys)
+            return
+        }
+
+        // Try device info
+        profile.decodeDeviceInfo(message)?.let { info ->
+            _state.value = _state.value.copy(deviceInfo = info, lastMessageAt = Instant.now())
+            log(TAG) { "Device info: ${info.name} (${info.modelNumber})" }
+            return
+        }
+
+        // Try setting update (merge into existing state)
+        profile.decodeSetting(message)?.let { (key, value) ->
+            // Debounce device-initiated ANC mode changes (firmware cycles modes on ear transitions).
+            // Skip debounce for: first ANC mode (initial setup), echoes after our own command.
+            if (value is AapSetting.AncMode) {
+                val isFirstAncMode = _state.value.setting<AapSetting.AncMode>() == null
+                val sinceLastCommand = System.currentTimeMillis() - lastAncCommandSentAt
+                if (isFirstAncMode || sinceLastCommand <= 3000L) {
+                    ancDebounceJob?.cancel()
+                    _state.value = _state.value.withSetting(key, value).copy(lastMessageAt = Instant.now())
+                    log(TAG) { "Setting: ${key.simpleName} = $value" }
+
+                    // After our command, firmware may cycle through modes before settling.
+                    // Schedule a verification: if settled mode != commanded mode, re-send once.
+                    lastCommandedAncMode?.let { commanded ->
+                        ancResendJob?.cancel()
+                        ancResendJob = connectionScope?.launch {
+                            delay(1000L)
+                            val current = _state.value.setting<AapSetting.AncMode>()?.current
+                            if (current != null && current != commanded) {
+                                log(TAG) { "ANC mode diverged: commanded=$commanded settled=$current, re-sending" }
+                                lastCommandedAncMode = null
+                                sendRaw(AapCommand.SetAncMode(commanded))
+                            } else {
+                                lastCommandedAncMode = null
+                            }
+                        }
+                    }
+                } else {
+                    ancDebounceJob?.cancel()
+                    ancDebounceJob = connectionScope?.launch {
+                        delay(1500L)
+                        _state.value = _state.value.withSetting(key, value).copy(lastMessageAt = Instant.now())
+                        log(TAG) { "Setting (debounced): ${key.simpleName} = $value" }
+                    }
+                }
+                return
+            }
+
+            // Detect ear detection role swap — clear stale PrimaryPod until 0x0008 refreshes it
+            val clearPrimaryPod = value is AapSetting.EarDetection && run {
+                val prev = _state.value.setting<AapSetting.EarDetection>()
+                prev != null && prev.primaryPod == value.secondaryPod && prev.secondaryPod == value.primaryPod
+            }
+
+            var newState = _state.value.withSetting(key, value).copy(lastMessageAt = Instant.now())
+            if (clearPrimaryPod) {
+                newState = newState.copy(settings = newState.settings - AapSetting.PrimaryPod::class)
+            }
+            _state.value = newState
+            log(TAG) { "Setting: ${key.simpleName} = $value${if (clearPrimaryPod) " (swap, PrimaryPod cleared)" else ""}" }
+
+            // Flush queued ANC command when a pod goes in ear
+            if (value is AapSetting.EarDetection && value.isEitherPodInEar) {
+                pendingAncMode?.let { mode ->
+                    pendingAncMode = null
+                    // Optimistic update — show target mode immediately, don't wait for device echo
+                    val currentAnc = _state.value.setting<AapSetting.AncMode>()
+                    if (currentAnc != null) {
+                        _state.value = _state.value
+                            .withSetting(AapSetting.AncMode::class, currentAnc.copy(current = mode))
+                            .copy(pendingAncMode = null, lastMessageAt = Instant.now())
+                    } else {
+                        _state.value = _state.value.copy(pendingAncMode = null)
+                    }
+                    log(TAG) { "Pod in ear, sending queued ANC mode: $mode" }
+                    connectionScope?.launch { sendRaw(AapCommand.SetAncMode(mode)) }
+                }
+            }
+            return
+        }
+
+        log(TAG) { "Unhandled message: cmd=0x${"%04X".format(message.commandType)} payload=${message.payload.size}B" }
+    }
+
+    private fun cleanupSocket() {
+        try {
+            socket?.close()
+        } catch (_: Exception) {
+        }
+        socket = null
+    }
+
+    companion object {
+        private val TAG = logTag("AapConnection")
+
+        /**
+         * Diagnostic-only NUL-delimited segmentation of a 0x1D INFORMATION payload, used for the
+         * issue #173 engraving discovery logging. Not part of the production decode path — the
+         * production parser [eu.darken.capod.pods.core.apple.aap.protocol.DefaultAapDeviceProfile]
+         * intentionally stays ASCII-only to preserve existing wire-format assumptions.
+         *
+         * Skips binary header bytes until the first printable ASCII byte (mirroring the production
+         * decoder's start condition — all known captures begin the real data with the device name,
+         * which is always ASCII like "AirPods Pro"), then splits on NUL bytes. Each non-empty chunk
+         * becomes one [DeviceInfoSegment]. UTF-8 decode is attempted strictly; if a chunk contains
+         * invalid UTF-8 (e.g. the post-serials encrypted blob), [DeviceInfoSegment.utf8] is null
+         * and the caller falls back to [DeviceInfoSegment.hex].
+         *
+         * Offsets are relative to the supplied payload (post message-header), matching what the
+         * caller holds in [AapMessage.payload].
+         */
+        internal fun describeDeviceInfoSegments(payload: ByteArray): List<DeviceInfoSegment> {
+            var start = 0
+            while (start < payload.size) {
+                val b = payload[start].toInt() and 0xFF
+                if (b in 0x20..0x7E) break
+                start++
+            }
+            if (start >= payload.size) return emptyList()
+
+            val segments = mutableListOf<DeviceInfoSegment>()
+            var segIndex = 0
+            var i = start
+            while (i < payload.size) {
+                while (i < payload.size && payload[i] == 0x00.toByte()) i++
+                if (i >= payload.size) break
+
+                val segStart = i
+                while (i < payload.size && payload[i] != 0x00.toByte()) i++
+                val segBytes = payload.copyOfRange(segStart, i)
+
+                val utf8: String? = try {
+                    Charsets.UTF_8.newDecoder()
+                        .onMalformedInput(CodingErrorAction.REPORT)
+                        .onUnmappableCharacter(CodingErrorAction.REPORT)
+                        .decode(ByteBuffer.wrap(segBytes))
+                        .toString()
+                } catch (_: CharacterCodingException) {
+                    null
+                }
+                val hex = segBytes.joinToString("") { "%02X".format(it) }
+
+                segments.add(
+                    DeviceInfoSegment(
+                        index = segIndex,
+                        offset = segStart,
+                        length = segBytes.size,
+                        utf8 = utf8,
+                        hex = hex,
+                    )
+                )
+                segIndex++
+            }
+            return segments
+        }
+
+        internal data class DeviceInfoSegment(
+            val index: Int,
+            val offset: Int,
+            val length: Int,
+            val utf8: String?,
+            val hex: String,
+        )
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/AapConnectionManager.kt

@@ -0,0 +1,150 @@
+package eu.darken.capod.pods.core.apple.aap
+
+import android.bluetooth.BluetoothDevice
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.bluetooth.l2cap.L2capSocketFactory
+import eu.darken.capod.common.coroutine.AppScope
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
+import eu.darken.capod.pods.core.apple.aap.protocol.AapDeviceProfile
+import eu.darken.capod.pods.core.apple.aap.protocol.KeyExchangeResult
+import eu.darken.capod.pods.core.apple.aap.protocol.StemPressEvent
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Singleton managing all AAP L2CAP connections.
+ * Keyed by [BluetoothAddress] (stable across scan gaps and app restarts for bonded devices).
+ * Connections are owned internally — consumers interact via [sendCommand] and observe via [allStates].
+ */
+@Singleton
+class AapConnectionManager @Inject constructor(
+    private val socketFactory: L2capSocketFactory,
+    @AppScope private val scope: CoroutineScope,
+) {
+    companion object {
+        private val TAG = logTag("AapConnectionMgr")
+    }
+
+    private val mutex = Mutex()
+    private val connections = mutableMapOf<BluetoothAddress, AapConnection>()
+    private val connectionJobs = mutableMapOf<BluetoothAddress, Job>()
+    private val intentionalDisconnects = mutableSetOf<BluetoothAddress>()
+
+    private val _allStates = MutableStateFlow<Map<BluetoothAddress, AapPodState>>(emptyMap())
+    val allStates: StateFlow<Map<BluetoothAddress, AapPodState>> = _allStates.asStateFlow()
+
+    private val _disconnectEvents = MutableSharedFlow<BluetoothAddress>(extraBufferCapacity = 16)
+    val disconnectEvents: SharedFlow<BluetoothAddress> = _disconnectEvents.asSharedFlow()
+
+    /** Emits when a connection receives private keys (IRK/ENC) from the device. */
+    private val _keysReceived = MutableSharedFlow<Pair<BluetoothAddress, KeyExchangeResult>>(extraBufferCapacity = 16)
+    val keysReceived: SharedFlow<Pair<BluetoothAddress, KeyExchangeResult>> = _keysReceived.asSharedFlow()
+
+    /** Emits transient stem press events from any connected device. */
+    private val _stemPressEvents = MutableSharedFlow<Pair<BluetoothAddress, StemPressEvent>>(extraBufferCapacity = 32)
+    val stemPressEvents: SharedFlow<Pair<BluetoothAddress, StemPressEvent>> = _stemPressEvents.asSharedFlow()
+
+    fun deviceState(address: BluetoothAddress) = _allStates.map { it[address] }
+
+    suspend fun connect(
+        address: BluetoothAddress,
+        device: BluetoothDevice,
+        model: PodModel,
+    ) = mutex.withLock {
+        if (connections.containsKey(address)) {
+            log(TAG) { "Already connected to $address" }
+            return
+        }
+
+        // Clear stale intentional-disconnect flag from previous connection lifecycle
+        intentionalDisconnects.remove(address)
+
+        val profile = AapDeviceProfile.Companion.forModel(model)
+        val connection = AapConnection(device, profile, socketFactory)
+        connections[address] = connection
+
+        try {
+            connection.connect(scope)
+        } catch (e: Exception) {
+            connections.remove(address)
+            throw e
+        }
+
+        // Collect connection state and propagate live updates to allStates.
+        // The coroutine cancels itself after handling DISCONNECTED,
+        // which also cancels the child key-forwarding coroutine.
+        connectionJobs[address] = scope.launch {
+            // Forward private keys from this connection (child coroutine)
+            launch {
+                connection.keysReceived.collect { keys ->
+                    _keysReceived.tryEmit(address to keys)
+                }
+            }
+
+            // Forward stem press events from this connection (child coroutine)
+            launch {
+                connection.stemPressEvents.collect { event ->
+                    _stemPressEvents.tryEmit(address to event)
+                }
+            }
+
+            connection.state.collect { podState ->
+                if (podState.connectionState == AapPodState.ConnectionState.DISCONNECTED) {
+                    log(TAG) { "Connection to $address disconnected" }
+                    val wasIntentional = mutex.withLock {
+                        connections.remove(address)
+                        connectionJobs.remove(address)
+                        connection.disconnect()
+                        _allStates.update { it - address }
+                        val intentional = address in intentionalDisconnects
+                        intentionalDisconnects.remove(address)
+                        intentional
+                    }
+
+                    if (!wasIntentional) {
+                        _disconnectEvents.tryEmit(address)
+                    }
+
+                    // End this collector coroutine (also cancels child key-forwarding coroutine)
+                    cancel()
+                } else {
+                    _allStates.update { it + (address to podState) }
+                }
+            }
+        }
+    }
+
+    suspend fun disconnect(address: BluetoothAddress) = mutex.withLock {
+        intentionalDisconnects.add(address)
+        val connection = connections.remove(address) ?: run {
+            intentionalDisconnects.remove(address)
+            return
+        }
+        connectionJobs.remove(address)?.cancel()
+        connection.disconnect()
+        _allStates.update { it - address }
+    }
+
+    suspend fun sendCommand(address: BluetoothAddress, command: AapCommand) {
+        val connection = mutex.withLock { connections[address] }
+            ?: throw IllegalStateException("No connection for $address")
+        connection.send(command)
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/AapPodState.kt

@@ -0,0 +1,93 @@
+package eu.darken.capod.pods.core.apple.aap
+
+import eu.darken.capod.pods.core.apple.aap.protocol.AapDeviceInfo
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import java.time.Instant
+import kotlin.reflect.KClass
+
+/**
+ * Pure data representing the current state of an AAP connection. No connection handle.
+ */
+data class AapPodState(
+    val connectionState: ConnectionState = ConnectionState.DISCONNECTED,
+    val deviceInfo: AapDeviceInfo? = null,
+    val settings: Map<KClass<out AapSetting>, AapSetting> = emptyMap(),
+    val batteries: Map<BatteryType, Battery> = emptyMap(),
+    val lastMessageAt: Instant? = null,
+    val pendingAncMode: AapSetting.AncMode.Value? = null,
+) {
+    inline fun <reified T : AapSetting> setting(): T? = settings[T::class] as? T
+
+    fun withSetting(key: KClass<out AapSetting>, value: AapSetting): AapPodState =
+        copy(settings = settings + (key to value))
+
+    // Ear detection — from AAP command 0x06
+    val aapEarDetection: AapSetting.EarDetection?
+        get() = setting<AapSetting.EarDetection>()
+
+    // Primary pod identity — from AAP command 0x08
+    val aapPrimaryPod: AapSetting.PrimaryPod?
+        get() = setting<AapSetting.PrimaryPod>()
+
+    val isEitherPodInEar: Boolean?
+        get() = aapEarDetection?.isEitherPodInEar
+
+    // Battery — from AAP command 0x04, 1% granularity
+    val batteryLeft: Float? get() = batteries[BatteryType.LEFT]?.percent
+    val batteryRight: Float? get() = batteries[BatteryType.RIGHT]?.percent
+    val batteryCase: Float? get() = batteries[BatteryType.CASE]?.percent
+    val batteryHeadset: Float? get() = batteries[BatteryType.SINGLE]?.percent
+
+    // Charging state from AAP battery
+    val isLeftCharging: Boolean?
+        get() = batteries[BatteryType.LEFT]?.let { it.charging == ChargingState.CHARGING || it.charging == ChargingState.CHARGING_OPTIMIZED }
+    val isRightCharging: Boolean?
+        get() = batteries[BatteryType.RIGHT]?.let { it.charging == ChargingState.CHARGING || it.charging == ChargingState.CHARGING_OPTIMIZED }
+    val isCaseCharging: Boolean?
+        get() = batteries[BatteryType.CASE]?.let { it.charging == ChargingState.CHARGING || it.charging == ChargingState.CHARGING_OPTIMIZED }
+    val isHeadsetCharging: Boolean?
+        get() = batteries[BatteryType.SINGLE]?.let { it.charging == ChargingState.CHARGING || it.charging == ChargingState.CHARGING_OPTIMIZED }
+
+    enum class ConnectionState {
+        DISCONNECTED,
+        CONNECTING,
+        HANDSHAKING,
+        READY,
+    }
+
+    /** Battery entry from an AAP battery notification (command 0x04). */
+    data class Battery(
+        val type: BatteryType,
+        val percent: Float,
+        val charging: ChargingState,
+    )
+
+    enum class BatteryType(val wireValue: Int) {
+        SINGLE(0x01),
+        RIGHT(0x02),
+        LEFT(0x04),
+        CASE(0x08),
+        ;
+
+        companion object {
+            fun fromWire(value: Int): BatteryType? = entries.firstOrNull { it.wireValue == value }
+        }
+    }
+
+    enum class ChargingState(val wireValue: Int) {
+        // Pro 1 sends 0x00 transiently when a pod is first removed from the case (reverts to NOT_CHARGING within seconds).
+        // Pro 2 USB-C skips this and reports NOT_CHARGING immediately. Likely a firmware timing difference.
+        UNDEFINED(0x00),
+        CHARGING(0x01),
+        NOT_CHARGING(0x02),
+        DISCONNECTED(0x04),
+        // Observed on Pro 3 and Pro 2 USB-C in charging case. Apple's "Optimized Battery Charging" feature.
+        // Not observed on Pro 1 (firmware 51.9.6) — may require newer firmware or hardware.
+        CHARGING_OPTIMIZED(0x05),
+        ;
+
+        companion object {
+            fun fromWire(value: Int): ChargingState = entries.firstOrNull { it.wireValue == value } ?: UNDEFINED
+        }
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/AapCommand.kt

@@ -0,0 +1,26 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+/**
+ * Outbound commands to change device settings. Pure domain — no wire protocol bytes.
+ * The [AapDeviceProfile] encodes these into the device-specific wire format.
+ */
+sealed class AapCommand {
+    data class SetAncMode(val mode: AapSetting.AncMode.Value) : AapCommand()
+    data class SetConversationalAwareness(val enabled: Boolean) : AapCommand()
+    data class SetPressSpeed(val value: AapSetting.PressSpeed.Value) : AapCommand()
+    data class SetPressHoldDuration(val value: AapSetting.PressHoldDuration.Value) : AapCommand()
+    data class SetNcWithOneAirPod(val enabled: Boolean) : AapCommand()
+    data class SetToneVolume(val level: Int) : AapCommand()
+    data class SetVolumeSwipeLength(val value: AapSetting.VolumeSwipeLength.Value) : AapCommand()
+    data class SetEndCallMuteMic(val muteMic: AapSetting.EndCallMuteMic.MuteMicMode, val endCall: AapSetting.EndCallMuteMic.EndCallMode) : AapCommand()
+    data class SetVolumeSwipe(val enabled: Boolean) : AapCommand()
+    data class SetPersonalizedVolume(val enabled: Boolean) : AapCommand()
+    data class SetAdaptiveAudioNoise(val level: Int) : AapCommand()
+    data class SetMicrophoneMode(val mode: AapSetting.MicrophoneMode.Mode) : AapCommand()
+    data class SetEarDetectionEnabled(val enabled: Boolean) : AapCommand()
+    data class SetListeningModeCycle(val modeMask: Int) : AapCommand()
+    data class SetAllowOffOption(val enabled: Boolean) : AapCommand()
+    data class SetStemConfig(val claimedPressMask: Int) : AapCommand()
+    data class SetSleepDetection(val enabled: Boolean) : AapCommand()
+    data class SetDeviceName(val name: String) : AapCommand()
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/AapDeviceInfo.kt

@@ -0,0 +1,12 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+/**
+ * Device identity parsed from the AAP handshake response (message type 0x1D).
+ */
+data class AapDeviceInfo(
+    val name: String,
+    val modelNumber: String,
+    val manufacturer: String,
+    val serialNumber: String,
+    val firmwareVersion: String,
+)

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/AapDeviceProfile.kt

@@ -0,0 +1,79 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import kotlin.reflect.KClass
+
+/**
+ * Per-model mapping between AAP wire format and domain types.
+ * All wire protocol bytes are encapsulated here — sealed classes [AapSetting] and [AapCommand]
+ * contain zero protocol knowledge.
+ *
+ * If Apple changes a setting ID or value encoding for a new model, only the profile changes.
+ */
+interface AapDeviceProfile {
+
+    /**
+     * Decode a single message into a setting update.
+     * Returns null if the message is not a recognized setting.
+     * Callers merge the returned pair into existing state (incremental update).
+     */
+    fun decodeSetting(message: AapMessage): Pair<KClass<out AapSetting>, AapSetting>?
+
+    /**
+     * Decode a battery notification (command 0x04).
+     * Returns null if the message is not a battery update.
+     */
+    fun decodeBattery(message: AapMessage): Map<AapPodState.BatteryType, AapPodState.Battery>?
+
+    /**
+     * Decode a device info message (typically command type 0x001D).
+     */
+    fun decodeDeviceInfo(message: AapMessage): AapDeviceInfo?
+
+    /**
+     * Encode a domain command into wire bytes ready to send.
+     * @throws UnsupportedOperationException if the command is not supported by this profile.
+     */
+    fun encodeCommand(command: AapCommand): ByteArray
+
+    /**
+     * Encode the handshake message that initiates the AAP session.
+     */
+    fun encodeHandshake(): ByteArray
+
+    /**
+     * Encode notification enable packets. These tell the device to push
+     * battery, settings, and other event notifications.
+     * Sent after the handshake, before the read loop starts.
+     */
+    fun encodeNotificationEnable(): List<ByteArray>
+
+    /**
+     * Encode the extended init packet (0x4D) for models that require it
+     * (e.g., Pro 2/3/USB-C, AirPods 4 ANC). Returns null if not needed.
+     */
+    fun encodeInitExt(): ByteArray?
+
+    /**
+     * Encode a private key request (command 0x30).
+     * Returns null if the model doesn't support key exchange.
+     */
+    fun encodePrivateKeyRequest(): ByteArray?
+
+    /**
+     * Decode a private key response (command 0x31).
+     * Returns null if the message is not a key response.
+     */
+    fun decodePrivateKeyResponse(message: AapMessage): KeyExchangeResult?
+
+    /**
+     * Decode a stem press event (command 0x19).
+     * Returns null if the message is not a stem press event.
+     */
+    fun decodeStemPress(message: AapMessage): StemPressEvent?
+
+    companion object {
+        fun forModel(model: PodModel): AapDeviceProfile = DefaultAapDeviceProfile(model)
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/AapMessage.kt

@@ -0,0 +1,79 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+/**
+ * A parsed AAP protocol message.
+ */
+data class AapMessage(
+    val raw: ByteArray,
+    val commandType: Int,
+    val payload: ByteArray,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is AapMessage) return false
+        return raw.contentEquals(other.raw)
+    }
+
+    override fun hashCode(): Int = raw.contentHashCode()
+
+    companion object {
+        /**
+         * Parse a complete AAP message from raw bytes.
+         * AAP messages have the format: [4-byte header] [2-byte command type] [payload...]
+         * Minimum message size is 6 bytes (header + command type with no payload).
+         */
+        fun parse(raw: ByteArray): AapMessage? {
+            if (raw.size < 6) return null
+            val commandType = (raw[4].toInt() and 0xFF) or ((raw[5].toInt() and 0xFF) shl 8)
+            val payload = if (raw.size > 6) raw.copyOfRange(6, raw.size) else ByteArray(0)
+            return AapMessage(raw = raw.copyOf(), commandType = commandType, payload = payload)
+        }
+    }
+}
+
+/**
+ * Accumulates bytes from a stream and emits complete [AapMessage] objects.
+ *
+ * Raw L2CAP reads can return partial or multiple messages in a single read.
+ * The framer buffers partial data and splits multi-message reads.
+ *
+ * AAP message framing: first 4 bytes are header, bytes 2-3 (little-endian)
+ * indicate total message length (excluding the first 4 header bytes).
+ */
+class AapFramer {
+
+    private val buffer = mutableListOf<Byte>()
+
+    /**
+     * Feed raw bytes from a socket read. Returns any complete messages found.
+     */
+    fun consume(bytes: ByteArray, offset: Int = 0, length: Int = bytes.size): List<AapMessage> {
+        for (i in offset until offset + length) {
+            buffer.add(bytes[i])
+        }
+
+        val messages = mutableListOf<AapMessage>()
+
+        while (buffer.size >= 4) {
+            // Bytes 2-3 (little-endian) = payload length after the 4-byte header
+            val payloadLength = (buffer[2].toInt() and 0xFF) or ((buffer[3].toInt() and 0xFF) shl 8)
+            val totalLength = 4 + payloadLength
+
+            if (buffer.size < totalLength) break // Need more data
+
+            val messageBytes = ByteArray(totalLength)
+            for (i in 0 until totalLength) {
+                messageBytes[i] = buffer[i]
+            }
+            buffer.subList(0, totalLength).clear()
+
+            AapMessage.parse(messageBytes)?.let { messages.add(it) }
+        }
+
+        return messages
+    }
+
+    fun reset() {
+        buffer.clear()
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/AapSetting.kt

@@ -0,0 +1,187 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+/**
+ * Device-reported settings. Pure domain — no wire protocol bytes.
+ * Each subclass represents a capability with its current state and supported values.
+ * The [AapDeviceProfile] handles all wire ↔ domain translation.
+ */
+sealed class AapSetting {
+
+    data class AncMode(
+        val current: Value,
+        val supported: List<Value>,
+    ) : AapSetting() {
+        enum class Value {
+            OFF, ON, TRANSPARENCY, ADAPTIVE,
+        }
+    }
+
+    data class ConversationalAwareness(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class PressSpeed(
+        val value: Value,
+    ) : AapSetting() {
+        enum class Value(val wireValue: Int) {
+            DEFAULT(0x00), SLOWER(0x01), SLOWEST(0x02);
+
+            companion object {
+                fun fromWire(value: Int): Value? = entries.firstOrNull { it.wireValue == value }
+            }
+        }
+    }
+
+    data class PressHoldDuration(
+        val value: Value,
+    ) : AapSetting() {
+        enum class Value(val wireValue: Int) {
+            DEFAULT(0x00), SHORTER(0x01), SHORTEST(0x02);
+
+            companion object {
+                fun fromWire(value: Int): Value? = entries.firstOrNull { it.wireValue == value }
+            }
+        }
+    }
+
+    data class NcWithOneAirPod(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class ToneVolume(
+        val level: Int,
+    ) : AapSetting()
+
+    data class VolumeSwipeLength(
+        val value: Value,
+    ) : AapSetting() {
+        enum class Value(val wireValue: Int) {
+            DEFAULT(0x00), LONGER(0x01), LONGEST(0x02);
+
+            companion object {
+                fun fromWire(value: Int): Value? = entries.firstOrNull { it.wireValue == value }
+            }
+        }
+    }
+
+    data class EndCallMuteMic(
+        val muteMic: MuteMicMode,
+        val endCall: EndCallMode,
+    ) : AapSetting() {
+        enum class MuteMicMode(val wireValue: Int) {
+            SINGLE_PRESS(0x23), DOUBLE_PRESS(0x22);
+
+            companion object {
+                fun fromWire(value: Int): MuteMicMode? = entries.firstOrNull { it.wireValue == value }
+            }
+        }
+
+        enum class EndCallMode(val wireValue: Int) {
+            DOUBLE_PRESS(0x02), SINGLE_PRESS(0x03);
+
+            companion object {
+                fun fromWire(value: Int): EndCallMode? = entries.firstOrNull { it.wireValue == value }
+            }
+        }
+    }
+
+    data class VolumeSwipe(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class PersonalizedVolume(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class AdaptiveAudioNoise(
+        val level: Int,
+    ) : AapSetting()
+
+    /** Push-only from device — reports speaking detection state (command 0x4B). */
+    data class ConversationalAwarenessState(
+        val speaking: Boolean,
+    ) : AapSetting()
+
+    data class MicrophoneMode(
+        val mode: Mode,
+    ) : AapSetting() {
+        enum class Mode(val wireValue: Int) {
+            AUTO(0x00), ALWAYS_RIGHT(0x01), ALWAYS_LEFT(0x02);
+
+            companion object {
+                fun fromWire(value: Int): Mode? = entries.firstOrNull { it.wireValue == value }
+            }
+        }
+    }
+
+    data class EarDetectionEnabled(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class ListeningModeCycle(
+        val modeMask: Int,
+    ) : AapSetting() {
+        val includesOff: Boolean get() = (modeMask and 0x01) != 0
+        val includesAnc: Boolean get() = (modeMask and 0x02) != 0
+        val includesTransparency: Boolean get() = (modeMask and 0x04) != 0
+        val includesAdaptive: Boolean get() = (modeMask and 0x08) != 0
+    }
+
+    data class AllowOffOption(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class StemConfig(
+        val claimedPressMask: Int,
+    ) : AapSetting() {
+        val claimsSinglePress: Boolean get() = (claimedPressMask and 0x01) != 0
+        val claimsDoublePress: Boolean get() = (claimedPressMask and 0x02) != 0
+        val claimsTriplePress: Boolean get() = (claimedPressMask and 0x04) != 0
+        val claimsLongPress: Boolean get() = (claimedPressMask and 0x08) != 0
+    }
+
+    data class SleepDetection(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class InCaseTone(
+        val enabled: Boolean,
+    ) : AapSetting()
+
+    data class ConnectedDevices(
+        val devices: List<ConnectedDevice>,
+    ) : AapSetting() {
+        data class ConnectedDevice(val mac: String, val type: Int)
+    }
+
+    data class AudioSource(
+        val sourceMac: String?,
+        val type: AudioSourceType,
+    ) : AapSetting() {
+        enum class AudioSourceType { NONE, CALL, MEDIA }
+    }
+
+    data class EqBands(
+        val sets: List<List<Float>>,
+    ) : AapSetting()
+
+    /** Per-pod placement reported by the device (command 0x06). */
+    data class EarDetection(
+        val primaryPod: PodPlacement,
+        val secondaryPod: PodPlacement,
+    ) : AapSetting() {
+        enum class PodPlacement {
+            IN_EAR, NOT_IN_EAR, IN_CASE, DISCONNECTED,
+        }
+
+        val isEitherPodInEar: Boolean
+            get() = primaryPod == PodPlacement.IN_EAR || secondaryPod == PodPlacement.IN_EAR
+    }
+
+    /** Which physical pod currently holds the microphone (command 0x08). */
+    data class PrimaryPod(
+        val pod: Pod,
+    ) : AapSetting() {
+        enum class Pod { LEFT, RIGHT }
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/DefaultAapDeviceProfile.kt

@@ -0,0 +1,492 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.aap.AapPodState
+import kotlin.reflect.KClass
+
+/**
+ * Default AAP device profile covering the known protocol from MagicPodsCore + LibrePods research.
+ * Handles the common wire format used by all Apple/Beats devices over L2CAP PSM 0x1001.
+ *
+ * Model-specific behavior (supported ANC modes, InitExt, feature gating) is driven by
+ * [PodModel.features] — no subclassing needed.
+ */
+class DefaultAapDeviceProfile(
+    private val model: PodModel = PodModel.UNKNOWN,
+) : AapDeviceProfile {
+
+    companion object {
+        // AAP command types (bytes 4-5 of the message, little-endian)
+        const val CMD_SETTINGS = 0x0009
+        const val CMD_BATTERY = 0x0004
+        const val CMD_DEVICE_INFO = 0x001D
+        const val CMD_PRIVATE_KEYS_RESPONSE = 0x0031
+        const val CMD_EAR_DETECTION = 0x0006
+        const val CMD_PRIMARY_POD = 0x0008
+        const val CMD_CONVERSATION_AWARENESS_STATE = 0x004B
+
+        // Setting IDs (first byte of settings command payload)
+        const val SETTING_ANC_MODE = 0x0D
+        const val SETTING_PRESS_SPEED = 0x17
+        const val SETTING_PRESS_HOLD_DURATION = 0x18
+        const val SETTING_NC_ONE_AIRPOD = 0x1B
+        const val SETTING_TONE_VOLUME = 0x1F
+        const val SETTING_VOLUME_SWIPE_LENGTH = 0x23
+        const val SETTING_END_CALL_MUTE_MIC = 0x24
+        const val SETTING_VOLUME_SWIPE = 0x25
+        const val SETTING_PERSONALIZED_VOLUME = 0x26
+        const val SETTING_CONVERSATIONAL_AWARENESS = 0x28
+        const val SETTING_ADAPTIVE_AUDIO_NOISE = 0x2E
+        const val SETTING_MICROPHONE_MODE = 0x01
+        const val SETTING_EAR_DETECTION_ENABLED = 0x0A
+        const val SETTING_LISTENING_MODE_CYCLE = 0x1A
+        // Kept decoded internally (never exposed in UI): the device pushes 0x31 frames and dropping the
+        // decode would fall through to "Unhandled message" logging and prevent lastMessageAt refresh,
+        // which AAP freshness / boost logic in PodDevice.computeAapBoost depends on.
+        // Originally labeled "Charging Sounds" but the real case tones are controlled over ATT, not here;
+        // the actual effect of this setting is unknown, so we don't expose or write it.
+        const val SETTING_IN_CASE_TONE = 0x31
+        const val SETTING_ALLOW_OFF_OPTION = 0x34
+        const val SETTING_SLEEP_DETECTION = 0x35
+        const val SETTING_STEM_CONFIG = 0x39
+
+        // Command types for non-settings messages
+        const val CMD_RENAME = 0x001E
+        const val CMD_STEM_PRESS = 0x0019
+        const val CMD_CONNECTED_DEVICES = 0x002E
+        const val CMD_AUDIO_SOURCE = 0x000E
+        const val CMD_EQ_DATA = 0x0053
+
+        // ANC mode wire values
+        const val ANC_WIRE_OFF = 0x01
+        const val ANC_WIRE_ON = 0x02
+        const val ANC_WIRE_TRANSPARENCY = 0x03
+        const val ANC_WIRE_ADAPTIVE = 0x04
+    }
+
+    private val supportedAncModes: List<AapSetting.AncMode.Value> by lazy {
+        val features = model.features
+        when {
+            !features.hasAncControl -> emptyList()
+            features.hasAdaptiveAnc -> listOf(AapSetting.AncMode.Value.OFF, AapSetting.AncMode.Value.ON, AapSetting.AncMode.Value.TRANSPARENCY, AapSetting.AncMode.Value.ADAPTIVE)
+            else -> listOf(AapSetting.AncMode.Value.OFF, AapSetting.AncMode.Value.ON, AapSetting.AncMode.Value.TRANSPARENCY)
+        }
+    }
+
+    override fun encodeHandshake(): ByteArray = byteArrayOf(
+        0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x02, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    )
+
+    override fun encodeNotificationEnable(): List<ByteArray> = listOf(
+        byteArrayOf(0x04, 0x00, 0x04, 0x00, 0x0f, 0x00, 0xff.toByte(), 0xff.toByte(), 0xef.toByte(), 0xff.toByte()),
+        byteArrayOf(0x04, 0x00, 0x04, 0x00, 0x0f, 0x00, 0xff.toByte(), 0xff.toByte(), 0xff.toByte(), 0xff.toByte()),
+    )
+
+    override fun encodeInitExt(): ByteArray? {
+        if (!model.features.needsInitExt) return null
+        return byteArrayOf(
+            0x04, 0x00, 0x04, 0x00, 0x4d, 0x00, 0x0e, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        )
+    }
+
+    override fun encodeCommand(command: AapCommand): ByteArray = when (command) {
+        is AapCommand.SetAncMode -> buildSettingsMessage(SETTING_ANC_MODE, encodeAncMode(command.mode))
+        is AapCommand.SetConversationalAwareness -> buildSettingsMessage(SETTING_CONVERSATIONAL_AWARENESS, encodeAppleBool(command.enabled))
+        is AapCommand.SetPressSpeed -> buildSettingsMessage(SETTING_PRESS_SPEED, command.value.wireValue)
+        is AapCommand.SetPressHoldDuration -> buildSettingsMessage(SETTING_PRESS_HOLD_DURATION, command.value.wireValue)
+        is AapCommand.SetNcWithOneAirPod -> buildSettingsMessage(SETTING_NC_ONE_AIRPOD, encodeAppleBool(command.enabled))
+        is AapCommand.SetToneVolume -> buildSettingsMessage(SETTING_TONE_VOLUME, command.level.coerceIn(0x0F, 0x64))
+        is AapCommand.SetVolumeSwipeLength -> buildSettingsMessage(SETTING_VOLUME_SWIPE_LENGTH, command.value.wireValue)
+        is AapCommand.SetVolumeSwipe -> buildSettingsMessage(SETTING_VOLUME_SWIPE, encodeAppleBool(command.enabled))
+        is AapCommand.SetPersonalizedVolume -> buildSettingsMessage(SETTING_PERSONALIZED_VOLUME, encodeAppleBool(command.enabled))
+        is AapCommand.SetAdaptiveAudioNoise -> buildSettingsMessage(SETTING_ADAPTIVE_AUDIO_NOISE, command.level.coerceIn(0, 100))
+        is AapCommand.SetEndCallMuteMic -> buildEndCallMuteMicMessage(command.muteMic, command.endCall)
+        is AapCommand.SetMicrophoneMode -> buildSettingsMessage(SETTING_MICROPHONE_MODE, command.mode.wireValue)
+        is AapCommand.SetEarDetectionEnabled -> buildSettingsMessage(SETTING_EAR_DETECTION_ENABLED, encodeAppleBool(command.enabled))
+        is AapCommand.SetListeningModeCycle -> buildSettingsMessage(SETTING_LISTENING_MODE_CYCLE, command.modeMask and 0x0F)
+        is AapCommand.SetAllowOffOption -> buildSettingsMessage(SETTING_ALLOW_OFF_OPTION, encodeAppleBool(command.enabled))
+        is AapCommand.SetStemConfig -> buildSettingsMessage(SETTING_STEM_CONFIG, command.claimedPressMask and 0x0F)
+        is AapCommand.SetSleepDetection -> buildSettingsMessage(SETTING_SLEEP_DETECTION, encodeAppleBool(command.enabled))
+        is AapCommand.SetDeviceName -> buildRenameMessage(command.name)
+    }
+
+    override fun decodeSetting(message: AapMessage): Pair<KClass<out AapSetting>, AapSetting>? {
+        // Primary pod identity (push-only, fires on mic/primary swap)
+        if (message.commandType == CMD_PRIMARY_POD) {
+            if (message.payload.size < 4) return null
+            val podId = message.payload[0].toInt() and 0xFF
+            // Validate known fixed bytes: [podId] 00 [00|01] [00|01]
+            // Pro 3: byte[2]=0x01 always. Pro 1: byte[2]=0x00 on initial, 0x01 on swap.
+            if ((message.payload[1].toInt() and 0xFF) != 0x00) return null
+            val byte2 = message.payload[2].toInt() and 0xFF
+            if (byte2 != 0x00 && byte2 != 0x01) return null
+            val pod = when (podId) {
+                0x01 -> AapSetting.PrimaryPod.Pod.LEFT
+                0x02 -> AapSetting.PrimaryPod.Pod.RIGHT
+                else -> return null
+            }
+            return AapSetting.PrimaryPod::class to AapSetting.PrimaryPod(pod)
+        }
+
+        // Ear detection is a separate command type (push-only from device)
+        if (message.commandType == CMD_EAR_DETECTION) {
+            if (message.payload.size < 2) return null
+            return AapSetting.EarDetection::class to AapSetting.EarDetection(
+                primaryPod = decodePodPlacement(message.payload[0].toInt() and 0xFF),
+                secondaryPod = decodePodPlacement(message.payload[1].toInt() and 0xFF),
+            )
+        }
+
+        // Connected devices list (push-only from device)
+        if (message.commandType == CMD_CONNECTED_DEVICES) {
+            if (message.payload.size < 3) return null
+            val count = message.payload[2].toInt() and 0xFF
+            val devices = mutableListOf<AapSetting.ConnectedDevices.ConnectedDevice>()
+            var offset = 3
+            for (i in 0 until count) {
+                if (offset + 8 > message.payload.size) break
+                val mac = (0 until 6).map { "%02X".format(message.payload[offset + it]) }.joinToString(":")
+                val type = message.payload[offset + 6].toInt() and 0xFF
+                devices.add(AapSetting.ConnectedDevices.ConnectedDevice(mac, type))
+                offset += 8
+            }
+            return AapSetting.ConnectedDevices::class to AapSetting.ConnectedDevices(devices)
+        }
+
+        // Audio source tracking (push-only from device)
+        if (message.commandType == CMD_AUDIO_SOURCE) {
+            if (message.payload.size < 7) return null
+            val mac = (0 until 6).map { "%02X".format(message.payload[it]) }.joinToString(":")
+            val typeValue = message.payload[6].toInt() and 0xFF
+            val type = when (typeValue) {
+                0x01 -> AapSetting.AudioSource.AudioSourceType.CALL
+                0x02 -> AapSetting.AudioSource.AudioSourceType.MEDIA
+                else -> AapSetting.AudioSource.AudioSourceType.NONE
+            }
+            return AapSetting.AudioSource::class to AapSetting.AudioSource(mac, type)
+        }
+
+        // EQ data (push-only from device)
+        if (message.commandType == CMD_EQ_DATA) {
+            if (message.payload.size < 6 + 128) return null
+            val sets = mutableListOf<List<Float>>()
+            var offset = 6 // skip header
+            for (s in 0 until 4) {
+                val bands = mutableListOf<Float>()
+                for (b in 0 until 8) {
+                    val bits = (message.payload[offset].toInt() and 0xFF) or
+                        ((message.payload[offset + 1].toInt() and 0xFF) shl 8) or
+                        ((message.payload[offset + 2].toInt() and 0xFF) shl 16) or
+                        ((message.payload[offset + 3].toInt() and 0xFF) shl 24)
+                    bands.add(Float.fromBits(bits))
+                    offset += 4
+                }
+                sets.add(bands)
+            }
+            return AapSetting.EqBands::class to AapSetting.EqBands(sets)
+        }
+
+        // Conversation Awareness State is a separate command type (push-only)
+        if (message.commandType == CMD_CONVERSATION_AWARENESS_STATE) {
+            if (message.payload.isEmpty()) return null
+            val value = message.payload[0].toInt() and 0xFF
+            val speaking = value == 0x01
+            return AapSetting.ConversationalAwarenessState::class to AapSetting.ConversationalAwarenessState(speaking)
+        }
+
+        if (message.commandType != CMD_SETTINGS) return null
+        if (message.payload.size < 2) return null
+
+        val settingId = message.payload[0].toInt() and 0xFF
+        val value = message.payload[1].toInt() and 0xFF
+
+        return when (settingId) {
+            SETTING_ANC_MODE -> {
+                val mode = decodeAncMode(value) ?: return null
+                AapSetting.AncMode::class to AapSetting.AncMode(current = mode, supported = supportedAncModes)
+            }
+            SETTING_CONVERSATIONAL_AWARENESS -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.ConversationalAwareness::class to AapSetting.ConversationalAwareness(enabled)
+            }
+            SETTING_PRESS_SPEED -> {
+                val speed = AapSetting.PressSpeed.Value.fromWire(value) ?: return null
+                AapSetting.PressSpeed::class to AapSetting.PressSpeed(speed)
+            }
+            SETTING_PRESS_HOLD_DURATION -> {
+                val duration = AapSetting.PressHoldDuration.Value.fromWire(value) ?: return null
+                AapSetting.PressHoldDuration::class to AapSetting.PressHoldDuration(duration)
+            }
+            SETTING_NC_ONE_AIRPOD -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.NcWithOneAirPod::class to AapSetting.NcWithOneAirPod(enabled)
+            }
+            SETTING_TONE_VOLUME -> {
+                AapSetting.ToneVolume::class to AapSetting.ToneVolume(level = value)
+            }
+            SETTING_VOLUME_SWIPE_LENGTH -> {
+                val length = AapSetting.VolumeSwipeLength.Value.fromWire(value) ?: return null
+                AapSetting.VolumeSwipeLength::class to AapSetting.VolumeSwipeLength(length)
+            }
+            SETTING_END_CALL_MUTE_MIC -> {
+                decodeEndCallMuteMic(message.payload)
+            }
+            SETTING_VOLUME_SWIPE -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.VolumeSwipe::class to AapSetting.VolumeSwipe(enabled)
+            }
+            SETTING_PERSONALIZED_VOLUME -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.PersonalizedVolume::class to AapSetting.PersonalizedVolume(enabled)
+            }
+            SETTING_ADAPTIVE_AUDIO_NOISE -> {
+                AapSetting.AdaptiveAudioNoise::class to AapSetting.AdaptiveAudioNoise(level = value)
+            }
+            SETTING_MICROPHONE_MODE -> {
+                val mode = AapSetting.MicrophoneMode.Mode.fromWire(value) ?: return null
+                AapSetting.MicrophoneMode::class to AapSetting.MicrophoneMode(mode)
+            }
+            SETTING_EAR_DETECTION_ENABLED -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.EarDetectionEnabled::class to AapSetting.EarDetectionEnabled(enabled)
+            }
+            SETTING_LISTENING_MODE_CYCLE -> {
+                AapSetting.ListeningModeCycle::class to AapSetting.ListeningModeCycle(modeMask = value)
+            }
+            SETTING_ALLOW_OFF_OPTION -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.AllowOffOption::class to AapSetting.AllowOffOption(enabled)
+            }
+            SETTING_STEM_CONFIG -> {
+                AapSetting.StemConfig::class to AapSetting.StemConfig(claimedPressMask = value)
+            }
+            SETTING_SLEEP_DETECTION -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.SleepDetection::class to AapSetting.SleepDetection(enabled)
+            }
+            SETTING_IN_CASE_TONE -> {
+                val enabled = decodeAppleBool(value) ?: return null
+                AapSetting.InCaseTone::class to AapSetting.InCaseTone(enabled)
+            }
+            else -> null
+        }
+    }
+
+    override fun decodeBattery(message: AapMessage): Map<AapPodState.BatteryType, AapPodState.Battery>? {
+        if (message.commandType != CMD_BATTERY) return null
+        val payload = message.payload
+        if (payload.isEmpty()) return null
+
+        val count = payload[0].toInt() and 0xFF
+        if (count == 0) return emptyMap()
+
+        // Each battery entry is 5 bytes starting at offset 1
+        val result = mutableMapOf<AapPodState.BatteryType, AapPodState.Battery>()
+        var offset = 1
+        for (i in 0 until count) {
+            if (offset + 5 > payload.size) break
+
+            val type = AapPodState.BatteryType.fromWire(payload[offset].toInt() and 0xFF) ?: run {
+                offset += 5
+                continue
+            }
+            // payload[offset+1] is unknown/reserved
+            val percent = payload[offset + 2].toInt() and 0xFF
+            val charging = AapPodState.ChargingState.fromWire(payload[offset + 3].toInt() and 0xFF)
+            // payload[offset+4] is unknown/reserved
+            offset += 5
+
+            // Values above 100 are not valid battery percentages.
+            // Known cases: 127 (0x7F) = fake reading after case close, 255 (0xFF) = disconnected.
+            if (percent > 100) continue
+
+            result[type] = AapPodState.Battery(
+                type = type,
+                percent = percent / 100f,
+                charging = charging,
+            )
+        }
+
+        return result
+    }
+
+    override fun encodePrivateKeyRequest(): ByteArray = byteArrayOf(
+        0x04, 0x00, 0x04, 0x00, 0x30, 0x00, 0x05, 0x00
+    )
+
+    override fun decodePrivateKeyResponse(message: AapMessage): KeyExchangeResult? {
+        if (message.commandType != CMD_PRIVATE_KEYS_RESPONSE) return null
+        val payload = message.payload
+        if (payload.isEmpty()) return null
+
+        val keyCount = payload[0].toInt() and 0xFF
+        var irk: ByteArray? = null
+        var encKey: ByteArray? = null
+        var offset = 1
+
+        for (i in 0 until keyCount) {
+            // Each entry: keyType(1), unknown(1), keyLength(1), unknown(1), keyData(keyLength)
+            if (offset + 4 > payload.size) break
+            val keyType = payload[offset].toInt() and 0xFF
+            // offset+1 is unknown
+            val keyLength = payload[offset + 2].toInt() and 0xFF
+            // offset+3 is unknown
+            offset += 4
+
+            if (offset + keyLength > payload.size) break
+            val keyData = payload.copyOfRange(offset, offset + keyLength)
+            offset += keyLength
+
+            when (keyType) {
+                0x01 -> if (keyLength == 16) irk = keyData     // IRK
+                0x04 -> if (keyLength == 16) encKey = keyData   // ENC
+            }
+        }
+
+        return if (irk != null || encKey != null) KeyExchangeResult(irk, encKey) else null
+    }
+
+    override fun decodeDeviceInfo(message: AapMessage): AapDeviceInfo? {
+        if (message.commandType != CMD_DEVICE_INFO) return null
+        if (message.payload.size < 10) return null
+
+        // Device info payload contains null-terminated ASCII strings
+        // Format: [length prefix] [strings...]
+        val strings = parseNullTerminatedStrings(message.payload)
+        if (strings.size < 4) return null
+
+        return AapDeviceInfo(
+            name = strings.getOrElse(0) { "" },
+            modelNumber = strings.getOrElse(1) { "" },
+            manufacturer = strings.getOrElse(2) { "" },
+            serialNumber = strings.getOrElse(3) { "" },
+            firmwareVersion = strings.getOrElse(4) { "" },
+        )
+    }
+
+    private fun decodePodPlacement(wireValue: Int): AapSetting.EarDetection.PodPlacement = when (wireValue) {
+        0x00 -> AapSetting.EarDetection.PodPlacement.IN_EAR
+        0x01 -> AapSetting.EarDetection.PodPlacement.NOT_IN_EAR
+        0x02 -> AapSetting.EarDetection.PodPlacement.IN_CASE
+        else -> AapSetting.EarDetection.PodPlacement.DISCONNECTED
+    }
+
+    protected fun encodeAncMode(mode: AapSetting.AncMode.Value): Int = when (mode) {
+        AapSetting.AncMode.Value.OFF -> ANC_WIRE_OFF
+        AapSetting.AncMode.Value.ON -> ANC_WIRE_ON
+        AapSetting.AncMode.Value.TRANSPARENCY -> ANC_WIRE_TRANSPARENCY
+        AapSetting.AncMode.Value.ADAPTIVE -> ANC_WIRE_ADAPTIVE
+    }
+
+    protected fun decodeAncMode(wireValue: Int): AapSetting.AncMode.Value? = when (wireValue) {
+        ANC_WIRE_OFF -> AapSetting.AncMode.Value.OFF
+        ANC_WIRE_ON -> AapSetting.AncMode.Value.ON
+        ANC_WIRE_TRANSPARENCY -> AapSetting.AncMode.Value.TRANSPARENCY
+        ANC_WIRE_ADAPTIVE -> AapSetting.AncMode.Value.ADAPTIVE
+        else -> null
+    }
+
+    /** Standard Apple boolean encoding: 0x01=on, 0x02=off. */
+    private fun encodeAppleBool(enabled: Boolean): Int = if (enabled) 0x01 else 0x02
+
+    /** Decode Apple boolean: 0x01=true, 0x02=false, anything else=null (unknown). */
+    private fun decodeAppleBool(wireValue: Int): Boolean? = when (wireValue) {
+        0x01 -> true
+        0x02 -> false
+        else -> null
+    }
+
+    private fun buildSettingsMessage(settingId: Int, value: Int): ByteArray = byteArrayOf(
+        0x04, 0x00, 0x04, 0x00,
+        0x09, 0x00,
+        settingId.toByte(), value.toByte(),
+        0x00, 0x00, 0x00,
+    )
+
+    /** EndCallMuteMic uses a special 2-byte format: [0x24] [0x21] [muteMic] [endCall] [0x00] */
+    private fun buildEndCallMuteMicMessage(muteMic: AapSetting.EndCallMuteMic.MuteMicMode, endCall: AapSetting.EndCallMuteMic.EndCallMode): ByteArray = byteArrayOf(
+        0x04, 0x00, 0x04, 0x00,
+        0x09, 0x00,
+        SETTING_END_CALL_MUTE_MIC.toByte(), 0x21,
+        muteMic.wireValue.toByte(), endCall.wireValue.toByte(),
+        0x00,
+    )
+
+    private fun decodeEndCallMuteMic(payload: ByteArray): Pair<KClass<out AapSetting>, AapSetting>? {
+        if (payload.size < 4) return null
+        val subType = payload[1].toInt() and 0xFF
+        return when (subType) {
+            0x21 -> {
+                // Standard format: byte 2 = muteMic, byte 3 = endCall
+                val muteMic = AapSetting.EndCallMuteMic.MuteMicMode.fromWire(payload[2].toInt() and 0xFF) ?: return null
+                val endCall = AapSetting.EndCallMuteMic.EndCallMode.fromWire(payload[3].toInt() and 0xFF) ?: return null
+                AapSetting.EndCallMuteMic::class to AapSetting.EndCallMuteMic(muteMic, endCall)
+            }
+            0x00, 0x20 -> {
+                // Compact response format: byte 2 is a combined mode value.
+                // 0x00: observed on Pro 1 (fw 51.9.6, 2026-04-02) and Pro 2 USB-C (fw 81.x, 2026-04-02) and Pro 3.
+                // 0x20: observed on Pro 1 (fw 51.9.6, 2026-03-31). Same device can send either subtype across sessions.
+                val combined = payload[2].toInt() and 0xFF
+                val (muteMic, endCall) = when (combined) {
+                    0x02 -> AapSetting.EndCallMuteMic.MuteMicMode.SINGLE_PRESS to AapSetting.EndCallMuteMic.EndCallMode.DOUBLE_PRESS
+                    0x03 -> AapSetting.EndCallMuteMic.MuteMicMode.DOUBLE_PRESS to AapSetting.EndCallMuteMic.EndCallMode.SINGLE_PRESS
+                    else -> return null
+                }
+                AapSetting.EndCallMuteMic::class to AapSetting.EndCallMuteMic(muteMic, endCall)
+            }
+            else -> null
+        }
+    }
+
+    override fun decodeStemPress(message: AapMessage): StemPressEvent? {
+        if (message.commandType != CMD_STEM_PRESS) return null
+        if (message.payload.size < 2) return null
+        val pressType = StemPressEvent.PressType.fromWire(message.payload[0].toInt() and 0xFF) ?: return null
+        val bud = StemPressEvent.Bud.fromWire(message.payload[1].toInt() and 0xFF) ?: return null
+        return StemPressEvent(pressType, bud)
+    }
+
+    private fun buildRenameMessage(name: String): ByteArray {
+        // Uses the opcode 0x1A format from the LibrePods AAP docs + Linux implementation.
+        // Verified end-to-end on AirPods Pro 2 USB-C (firmware 81.2675...): the device accepts
+        // the rename, persists it, and echoes the new name back via the next 0x001D device info
+        // message on reconnect.
+        //
+        // Note: the LibrePods Android code (AACPManager.createRenamePacket) uses a DIFFERENT
+        // format with opcode 0x1E and a trailing NUL, but on-device testing shows the device
+        // silently ignores that variant. The Linux / documented format is the one that works.
+        //
+        // Scope: this only changes the AirPods firmware's self-reported name (what 0x001D
+        // returns). It does NOT update the phone's Bluetooth alias — Android's system Bluetooth
+        // settings read from the bond database, which is separate and would require
+        // BluetoothDevice.setAlias(). That's intentionally out of scope here.
+        val nameBytes = name.toByteArray(Charsets.UTF_8)
+        require(nameBytes.size <= 127) { "Device name too long: ${nameBytes.size} bytes (max 127)" }
+        return byteArrayOf(
+            0x04, 0x00, 0x04, 0x00,
+            0x1A, 0x00, 0x01,
+            nameBytes.size.toByte(), 0x00,
+        ) + nameBytes
+    }
+
+    private fun parseNullTerminatedStrings(data: ByteArray): List<String> {
+        val strings = mutableListOf<String>()
+        var start = 0
+
+        // Find runs of printable ASCII (0x20..0x7E) separated by null bytes.
+        // Header bytes and non-ASCII bytes are skipped.
+        var i = 0
+        while (i < data.size) {
+            val b = data[i].toInt() and 0xFF
+            if (b in 0x20..0x7E) {
+                start = i
+                while (i < data.size && data[i] != 0x00.toByte()) i++
+                strings.add(String(data, start, i - start, Charsets.US_ASCII))
+            }
+            i++
+        }
+        return strings
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/KeyExchangeResult.kt

@@ -0,0 +1,29 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+/**
+ * Result of parsing an AAP private key response (command 0x31).
+ * Contains the Identity Resolving Key (IRK) for BLE RPA verification
+ * and the Encryption Key (ENC) for BLE encrypted battery decryption.
+ */
+data class KeyExchangeResult(
+    val irk: ByteArray?,
+    val encKey: ByteArray?,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is KeyExchangeResult) return false
+        return irk.contentEquals(other.irk) && encKey.contentEquals(other.encKey)
+    }
+
+    override fun hashCode(): Int {
+        var result = irk?.contentHashCode() ?: 0
+        result = 31 * result + (encKey?.contentHashCode() ?: 0)
+        return result
+    }
+}
+
+private fun ByteArray?.contentEquals(other: ByteArray?): Boolean = when {
+    this == null && other == null -> true
+    this != null && other != null -> this.contentEquals(other)
+    else -> false
+}

app/src/main/java/eu/darken/capod/pods/core/apple/aap/protocol/StemPressEvent.kt

@@ -0,0 +1,22 @@
+package eu.darken.capod.pods.core.apple.aap.protocol
+
+data class StemPressEvent(
+    val pressType: PressType,
+    val bud: Bud,
+) {
+    enum class PressType(val wireValue: Int) {
+        SINGLE(0x05), DOUBLE(0x06), TRIPLE(0x07), LONG(0x08);
+
+        companion object {
+            fun fromWire(value: Int): PressType? = entries.firstOrNull { it.wireValue == value }
+        }
+    }
+
+    enum class Bud(val wireValue: Int) {
+        LEFT(0x01), RIGHT(0x02);
+
+        companion object {
+            fun fromWire(value: Int): Bud? = entries.firstOrNull { it.wireValue == value }
+        }
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/ble/AppleFactory.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core.apple
+package eu.darken.capod.pods.core.apple.ble
 
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
@@ -6,13 +6,15 @@ import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
 import eu.darken.capod.common.debug.logging.asLog
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.apple.misc.UnknownAppleDevice
-import eu.darken.capod.pods.core.apple.protocol.ContinuityProtocol
-import eu.darken.capod.pods.core.apple.protocol.ProximityMessage
-import eu.darken.capod.pods.core.apple.protocol.ProximityPairing
-import eu.darken.capod.pods.core.apple.protocol.ProximityPayload
-import eu.darken.capod.pods.core.apple.protocol.RPAChecker
+import eu.darken.capod.pods.core.apple.ble.devices.ApplePods
+import eu.darken.capod.pods.core.apple.ble.devices.ApplePodsFactory
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.pods.core.apple.ble.devices.misc.UnknownAppleSnapshotBle
+import eu.darken.capod.pods.core.apple.ble.protocol.ContinuityProtocol
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityMessage
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPairing
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPayload
+import eu.darken.capod.pods.core.apple.ble.protocol.RPAChecker
 import eu.darken.capod.profiles.core.AppleDeviceProfile
 import eu.darken.capod.profiles.core.DeviceProfilesRepo
 import eu.darken.capod.profiles.core.currentProfiles
@@ -27,7 +29,7 @@ class AppleFactory @Inject constructor(
     private val proximityPairingDecoder: ProximityPairing.Decoder,
     private val proximityMessageDecrypter: ProximityMessage.Decrypter,
     private val podFactories: @JvmSuppressWildcards Set<ApplePodsFactory>,
-    private val unknownAppleFactory: UnknownAppleDevice.Factory,
+    private val unknownAppleFactory: UnknownAppleSnapshotBle.Factory,
     private val rpaChecker: RPAChecker,
     private val profilesRepo: DeviceProfilesRepo,
 ) {
@@ -59,7 +61,7 @@ class AppleFactory @Inject constructor(
         return proximityMessage
     }
 
-    suspend fun create(scanResult: BleScanResult): PodDevice? = lock.withLock {
+    suspend fun create(scanResult: BleScanResult): BlePodSnapshot? = lock.withLock {
         val proximityMessage = getMessage(scanResult) ?: return@withLock null
         val factory = podFactories.firstOrNull { it.isResponsible(proximityMessage) } ?: unknownAppleFactory
 
@@ -98,7 +100,7 @@ class AppleFactory @Inject constructor(
                 meta = ApplePods.AppleMeta(),
             )
             profile = profiles
-                .filter { it.model == PodDevice.Model.UNKNOWN || it.model == tempDevice.model }
+                .filter { it.model == PodModel.UNKNOWN || it.model == tempDevice.model }
                 .firstOrNull { it.minimumSignalQuality <= tempDevice.signalQuality }
         }
 

app/src/main/java/eu/darken/capod/pods/core/apple/ble/AppleFactoryModule.kt

@@ -0,0 +1,79 @@
+package eu.darken.capod.pods.core.apple.ble
+
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import dagger.multibindings.IntoSet
+import eu.darken.capod.pods.core.apple.ble.devices.ApplePodsFactory
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsGen1
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsGen2
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsGen3
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsGen4
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsGen4Anc
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsMax
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsMaxUsbc
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsPro
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsPro2
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsPro2Usbc
+import eu.darken.capod.pods.core.apple.ble.devices.airpods.AirPodsPro3
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsFitPro
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsFlex
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsSolo3
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsSolo4
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsSoloBuds
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsSoloPro
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsStudio3
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsStudioBuds
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsStudioBudsPlus
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsStudioPro
+import eu.darken.capod.pods.core.apple.ble.devices.beats.BeatsX
+import eu.darken.capod.pods.core.apple.ble.devices.beats.PowerBeats3
+import eu.darken.capod.pods.core.apple.ble.devices.beats.PowerBeats4
+import eu.darken.capod.pods.core.apple.ble.devices.beats.PowerBeatsPro
+import eu.darken.capod.pods.core.apple.ble.devices.beats.PowerBeatsPro2
+import eu.darken.capod.pods.core.apple.ble.devices.misc.FakeAirPodsGen1
+import eu.darken.capod.pods.core.apple.ble.devices.misc.FakeAirPodsGen2
+import eu.darken.capod.pods.core.apple.ble.devices.misc.FakeAirPodsGen3
+import eu.darken.capod.pods.core.apple.ble.devices.misc.FakeAirPodsPro
+import eu.darken.capod.pods.core.apple.ble.devices.misc.FakeAirPodsPro2
+
+@InstallIn(SingletonComponent::class)
+@Module
+abstract class AppleFactoryModule {
+
+    @Binds @IntoSet abstract fun airPodsGen1(factory: AirPodsGen1.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsGen2(factory: AirPodsGen2.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsGen3(factory: AirPodsGen3.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsGen4(factory: AirPodsGen4.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsGen4Anc(factory: AirPodsGen4Anc.Factory): ApplePodsFactory
+
+    @Binds @IntoSet abstract fun airPodsPro(factory: AirPodsPro.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsPro2(factory: AirPodsPro2.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsPro2Usbc(factory: AirPodsPro2Usbc.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsPro3(factory: AirPodsPro3.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsMax(factory: AirPodsMax.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun airPodsMax2(factory: AirPodsMaxUsbc.Factory): ApplePodsFactory
+
+    @Binds @IntoSet abstract fun beatsFlex(factory: BeatsFlex.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsSolo3(factory: BeatsSolo3.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsStudio3(factory: BeatsStudio3.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsX(factory: BeatsX.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun powerBeats3(factory: PowerBeats3.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun powerBeats4(factory: PowerBeats4.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun powerBeatsPro(factory: PowerBeatsPro.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun powerBeatsPro2(factory: PowerBeatsPro2.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsFitPro(factory: BeatsFitPro.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsSoloPro(factory: BeatsSoloPro.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsSolo4(factory: BeatsSolo4.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsSoloBuds(factory: BeatsSoloBuds.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsStudioBuds(factory: BeatsStudioBuds.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsStudioBudsPlus(factory: BeatsStudioBudsPlus.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun beatsStudioPro(factory: BeatsStudioPro.Factory): ApplePodsFactory
+
+    @Binds @IntoSet abstract fun fakeAirPodsGen1(factory: FakeAirPodsGen1.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun fakeAirPodsGen2(factory: FakeAirPodsGen2.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun fakeAirPodsGen3(factory: FakeAirPodsGen3.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun fakeAirPodsPro(factory: FakeAirPodsPro.Factory): ApplePodsFactory
+    @Binds @IntoSet abstract fun fakeAirPodsPro2(factory: FakeAirPodsPro2.Factory): ApplePodsFactory
+}

app/src/main/java/eu/darken/capod/pods/core/apple/ble/BlePodSnapshot.kt

@@ -0,0 +1,87 @@
+package eu.darken.capod.pods.core.apple.ble
+
+import android.content.Context
+import androidx.annotation.DrawableRes
+import eu.darken.capod.common.bluetooth.BleScanResult
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.pods.core.apple.PodModel
+import eu.darken.capod.profiles.core.DeviceProfile
+import java.time.Duration
+import java.time.Instant
+import java.util.UUID
+import kotlin.math.max
+
+interface BlePodSnapshot {
+
+    val identifier: Id
+
+    val model: PodModel
+
+    val address: BluetoothAddress
+        get() = scanResult.address
+
+    val seenLastAt: Instant
+
+    val seenFirstAt: Instant
+
+    val seenCounter: Int
+
+    val scanResult: BleScanResult
+
+    val rssi: Int
+        get() = scanResult.rssi
+
+    val reliability: Float
+
+    /**
+     * Pure RSSI quality for display bars — linear map of -100..-30 dBm → 0..1.
+     * Does not include reliability/age. Use for SignalIndicator only, not for
+     * device matching or sorting (that's signalQuality's job).
+     */
+    val rssiQuality: Float
+        get() = ((rssi + 100) / 70f).coerceIn(0f, 1f)
+
+    /**
+     * Composite quality for profile matching and sorting. Weighted blend of
+     * RSSI strength, detection reliability, and observation age.
+     * Used by AppleFactory (minimumSignalQuality filter) and TroubleShooter
+     * (closest-device selection). Not used for display bars.
+     */
+    val signalQuality: Float
+        get() {
+            val sqRssi = ((rssi + 100) / 70f).coerceIn(0f, 1f)
+            val sqReliability = max(BASE_CONFIDENCE, reliability)
+            val sqAge = (Duration.between(seenFirstAt, Instant.now()).toMinutes().coerceAtMost(60) / 60f) * 0.25f
+            log(VERBOSE) { "Signal Quality ($address): rssi=$sqRssi, reliability=$reliability, age=$sqAge" }
+            return (sqRssi + sqReliability + sqAge) / 2f
+        }
+
+    val rawData: Map<Int, ByteArray>
+        get() = scanResult.manufacturerSpecificData
+
+    val rawDataHex: List<String>
+        get() = rawData.entries.map { entry ->
+            "${entry.key}: ${entry.value.joinToString(separator = " ") { String.format("%02X", it) }}"
+        }
+
+    interface Meta {
+        val profile: DeviceProfile?
+    }
+
+    val meta: Meta
+
+    fun getLabel(context: Context): String = model.label
+
+    @get:DrawableRes
+    val iconRes: Int
+        get() = model.iconRes
+
+    @JvmInline
+    value class Id(private val id: UUID = UUID.randomUUID())
+
+    companion object {
+        const val BASE_CONFIDENCE = 0.0f
+    }
+}

app/src/main/java/eu/darken/capod/pods/core/apple/ble/DualBlePodSnapshot.kt

@@ -1,9 +1,9 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
 
-interface DualPodDevice : PodDevice {
+interface DualBlePodSnapshot : BlePodSnapshot {
 
     enum class Pod {
         LEFT,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/PodDeviceExtensions.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble
 
 import android.content.Context
 import android.icu.text.RelativeDateTimeFormatter
@@ -18,11 +18,6 @@ fun formatBatteryPercent(context: Context, percent: Float?): String =
     percent?.let { "${(it * 100).roundToInt()}%" }
         ?: context.getString(R.string.general_value_not_available_label)
 
-fun PodDevice.getSignalQuality(context: Context): String {
-    val multiplier = 100 * signalQuality
-    return "${multiplier.roundToInt()}%"
-}
-
 @DrawableRes
 fun getBatteryDrawable(percent: Float?): Int = when {
     percent == null -> R.drawable.ic_baseline_battery_unknown_24
@@ -36,7 +31,7 @@ fun getBatteryDrawable(percent: Float?): Int = when {
     else -> R.drawable.ic_baseline_battery_0_bar_24
 }
 
-fun PodDevice.lastSeenFormatted(now: Instant): String {
+fun BlePodSnapshot.lastSeenFormatted(now: Instant): String {
     val formatter = RelativeDateTimeFormatter.getInstance()
     val duration = Duration.between(seenLastAt, now)
     return if (duration > Duration.ofMinutes(1)) {
@@ -54,7 +49,7 @@ fun PodDevice.lastSeenFormatted(now: Instant): String {
     }
 }
 
-fun PodDevice.firstSeenFormatted(now: Instant): String {
+fun BlePodSnapshot.firstSeenFormatted(now: Instant): String {
     val formatter = RelativeDateTimeFormatter.getInstance()
     val duration = Duration.between(seenFirstAt, now)
     return formatter.format(

app/src/main/java/eu/darken/capod/pods/core/apple/ble/PodFactory.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble
 
 import dagger.Reusable
 import eu.darken.capod.common.bluetooth.BleScanResult
@@ -6,7 +6,6 @@ import eu.darken.capod.common.debug.logging.Logging.Priority.INFO
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
-import eu.darken.capod.pods.core.apple.AppleFactory
 import eu.darken.capod.pods.core.unknown.UnknownDeviceFactory
 import javax.inject.Inject
 
@@ -36,7 +35,7 @@ class PodFactory @Inject constructor(
 
     data class Result(
         val scanResult: BleScanResult,
-        val device: PodDevice
+        val device: BlePodSnapshot
     )
 
     companion object {

app/src/main/java/eu/darken/capod/pods/core/apple/ble/SingleBlePodSnapshot.kt

@@ -0,0 +1,6 @@
+package eu.darken.capod.pods.core.apple.ble
+
+interface SingleBlePodSnapshot : BlePodSnapshot {
+
+    val batteryHeadsetPercent: Float?
+}

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/ApplePods.kt

@@ -1,12 +1,12 @@
-package eu.darken.capod.pods.core.apple
+package eu.darken.capod.pods.core.apple.ble.devices
 
 import eu.darken.capod.common.lowerNibble
 import eu.darken.capod.common.upperNibble
+import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPayload
 import eu.darken.capod.profiles.core.AppleDeviceProfile
-import eu.darken.capod.pods.core.PodDevice
-import eu.darken.capod.pods.core.apple.protocol.ProximityPayload
 
-interface ApplePods : PodDevice {
+interface ApplePods : BlePodSnapshot {
 
     val payload: ProximityPayload
 
@@ -59,7 +59,7 @@ interface ApplePods : PodDevice {
     data class AppleMeta(
         val isIRKMatch: Boolean = false,
         override val profile: AppleDeviceProfile? = null,
-    ) : PodDevice.Meta
+    ) : BlePodSnapshot.Meta
 
     override val meta: AppleMeta
 }

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/ApplePodsFactory.kt

@@ -1,9 +1,9 @@
-package eu.darken.capod.pods.core.apple
+package eu.darken.capod.pods.core.apple.ble.devices
 
 import eu.darken.capod.common.bluetooth.BleScanResult
-import eu.darken.capod.pods.core.apple.history.KnownDevice
-import eu.darken.capod.pods.core.apple.protocol.ProximityMessage
-import eu.darken.capod.pods.core.apple.protocol.ProximityPayload
+import eu.darken.capod.pods.core.apple.ble.history.KnownDevice
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityMessage
+import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPayload
 
 interface ApplePodsFactory {
     fun isResponsible(message: ProximityMessage): Boolean

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/DualApplePods.kt

@@ -1,17 +1,13 @@
-package eu.darken.capod.pods.core.apple
+package eu.darken.capod.pods.core.apple.ble.devices
 
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.isBitSet
 import eu.darken.capod.common.lowerNibble
 import eu.darken.capod.common.upperNibble
-import eu.darken.capod.pods.core.DualPodDevice
-import eu.darken.capod.pods.core.DualPodDevice.Pod
-import eu.darken.capod.pods.core.HasCase
-import eu.darken.capod.pods.core.HasChargeDetectionDual
-import eu.darken.capod.pods.core.HasDualMicrophone
-import eu.darken.capod.pods.core.HasEarDetectionDual
+import eu.darken.capod.pods.core.apple.ble.DualBlePodSnapshot
+import eu.darken.capod.pods.core.apple.ble.DualBlePodSnapshot.Pod
 
-interface DualApplePods : ApplePods, HasChargeDetectionDual, DualPodDevice, HasEarDetectionDual, HasCase,
+interface DualApplePods : ApplePods, HasChargeDetectionDual, DualBlePodSnapshot, HasEarDetectionDual, HasCase,
     HasDualMicrophone, HasAppleColor {
 
     val primaryPod: Pod

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasAppleColor.kt

@@ -1,8 +1,7 @@
-package eu.darken.capod.pods.core.apple
+package eu.darken.capod.pods.core.apple.ble.devices
 
+import android.R
 import android.content.Context
-import eu.darken.capod.pods.core.HasPodStyle
-import eu.darken.capod.R
 
 interface HasAppleColor : ApplePods, HasPodStyle {
 
@@ -29,7 +28,7 @@ interface HasAppleColor : ApplePods, HasPodStyle {
 
         override fun getLabel(context: Context): String = this.name
 
-        override fun getColor(context: Context): Int = android.R.color.white
+        override fun getColor(context: Context): Int = R.color.white
 
         override val identifier: String
             get() = name

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasCase.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasChargeDetection.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 interface HasChargeDetection {
 

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasChargeDetectionDual.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 interface HasChargeDetectionDual : HasChargeDetection {
 

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasDualMicrophone.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 interface HasDualMicrophone {
 

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasEarDetection.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 interface HasEarDetection {
 

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasEarDetectionDual.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 interface HasEarDetectionDual : HasEarDetection {
 

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasPodStyle.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 import android.content.Context
 import androidx.annotation.ColorRes

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/HasStateDetection.kt

@@ -1,4 +1,4 @@
-package eu.darken.capod.pods.core
+package eu.darken.capod.pods.core.apple.ble.devices
 
 import android.content.Context