Bluetooth Version: V 4.2
Profile:A2DP V1.3. ACRCP V1.4. HFP V1.6
Transmission distance : 10M
Talking time: about 12 hours(70% volume)
Playing time: about 5 hours(70% volume)
Charging time:5 hours Standby time: about 10 months
Function: hand free phone. FM Radio, TF Card music play,
 Aux in (apply to PC/mobile phone/mp3 etc). BT connect, USB