Make sure to test it.

Start a call then drop it in the bag, regular call as well as signal call. Try WiFi connection as well as sim internet.

Open up YouTube or another site that streams and plays music. Start it but make sure it hasn't buffered everything. Drop it in the bag. Wait for the audio to stop.

Have downloaded audio. Connect Bluetooth headphones. Start the audio. Drop it in the bag. Wait for audio to cut.