diff --git a/proto/connections_enums.proto b/proto/connections_enums.proto
index 8ad75e93..4b34d86d 100644
--- a/proto/connections_enums.proto
+++ b/proto/connections_enums.proto
@@ -89,6 +89,34 @@ enum Medium {
 //     //depot/google3/third_party/nearby_connections/proto/connections/offline_wire_formats.proto
 // )
 
+// The medium technologies used during the sharing.
+enum ConnectionTechnology {
+  CONNECTION_TECHNOLOGY_UNKNOWN_TECHNOLOGY = 0;
+  CONNECTION_TECHNOLOGY_BLE_GATT = 1;
+  CONNECTION_TECHNOLOGY_BLE_L2CAP = 2;
+  CONNECTION_TECHNOLOGY_HOTSPOT_DIRECT = 3;
+  CONNECTION_TECHNOLOGY_HOTSPOT_LOCALONLY = 4;
+  CONNECTION_TECHNOLOGY_HOTSPOT_SOFTAP = 5;
+  CONNECTION_TECHNOLOGY_WEBRTC_WIFI = 6;
+  CONNECTION_TECHNOLOGY_WEBRTC_MOBILE = 7;
+  CONNECTION_TECHNOLOGY_WEBRTC_ETHERNET = 8;
+  CONNECTION_TECHNOLOGY_WEBRTC_VPN = 9;
+  CONNECTION_TECHNOLOGY_WEBRTC_LOOPBACK = 10;
+  CONNECTION_TECHNOLOGY_WEBRTC_ADAPTER_TYPE_ANY = 11;
+}
+
+// The WiFi band or cellular band used during the sharing.
+enum ConnectionBand {
+  CONNECTION_BAND_UNKNOWN_BAND = 0;
+  CONNECTION_BAND_WIFI_BAND_2GHZ = 1;
+  CONNECTION_BAND_WIFI_BAND_5GHZ = 2;
+  CONNECTION_BAND_WIFI_BAND_6GHZ = 3;
+  CONNECTION_BAND_CELLULAR_BAND_2G = 4;
+  CONNECTION_BAND_CELLULAR_BAND_3G = 5;
+  CONNECTION_BAND_CELLULAR_BAND_4G = 6;
+  CONNECTION_BAND_CELLULAR_BAND_5G = 7;
+}
+
 // The result of a ConnectionRequest.
 enum ConnectionRequestResponse {
   UNKNOWN_CONNECTION_REQUEST_RESPONSE = 0;