Bluetooth specification: V5.3
Bluetooth Profile: A2DP, AVRCP, HFP; HSP
Frequency response: 20Hz~20 kHz
Working voltage: 3.1V~4.2V
Charging voltage: 5V-1A
Charging type: Type-C charging port
Battery capacity of the headset: 35mAh
The battery capacity of the storage box：350mAh
Transmission distance : >10M
Playtime: About 4 hour
Waterproof: IPX5
Charging time of headset: 1 hour
Charging time of the Charging box: 1.5 hour