MG-G17 Bluetooth 4.2 Sport Wireless Bluetooth Earphone, Support Card(Silver)

Bluetooth version: jerry Bluetooth V4.2 Transmission distance: 10 meters Usage time: 4 hours Standby time: 4-6 minutes automatic shutdown Battery: 65mAh rechargeable lithium battery Function: adjust volume, switch songs, answer incoming calls, Call reject, hang up, bluetooth play, call heavy Play, bluetooth back connection, voice prompt, battery display, to Telegram number, intelligent shutdown, pure English broadcast