A7/A7S Bluetooth headset

Transmission distance: about 10 meters
Listening time: 3-5 hours standby time: 110 hours
Volume: 45mm in length, 15mm in width and 8mm in thickness
Support: A2DP high-quality pop music playback, volume adjustment support: multi-point connection, connect and hang up, end redial, call report number, voice prompt, Bluetooth self timer