1) Bluetooth Version: V4.1
2) Support Profile: AVRCP,A2DP,HSP,HFP
4) Battery Capacity:450mAh
5) Working Time: About 20 hours
6) Standby Time:450 hours
We are committed to building the world's most professional Bluetooth wireless acoustics application brand of first-class enterprises; actively promote the Bluetooth wireless acoustics technology applications and development.