Hama FreeStereo Twins Mode D'emploi page 18

9. Technical Data
Bluetooth technology
Supported profiles
Range
Output
Battery type
Charging time
Battery type
Charging time
16
Input
Bluetooth Headset
Bluetooth V4.1
A2DP, AVRCP, HSP, HFP
< 10 m
Charging box battery
5 V 340 mA
4,65 V 340 mA
Li-ion 3,7 V / 420 mAh
~ 2h
Battery for each headset
Li-ion 3,7 V / 40 mAh
~ 1h