Versions：BT V3.0+EDR
Support:  L2CAP/A2DP(AVCTP/AVDTP/AVRCP)HSP/HFP(Handsfree profile)
Product weight:  12g
Battery:  80mAh
Play time:  3~6h
Standby time: 100h
Calling time: 3~6h
Speaker: ∮10 32Ω
Charging time  2h
Package:100PCS/CTN
36*12.5*31.5CM(small box)

65.5*37.2*33.5CM(5 small boxes)
Net weight：7.66KG  
Gross weight：8.62KG

"1、Voice calling-number
2、Voice prompt
3、Automatically re-connect, automatically into pairing mode when failed
4、Low power prompt
5、Redial function
6、180 seconds later automatically to power off when no connect or failed to connect
7、Volume synchronization, the default volume is 50% of the maximum
8、Power synchronization
               "