Product specification:

Bluetooth version: 5.3
Chipset: Jieli                                                        

Operation: Touch control
Bluetooth profiles supported: HSP,HFP,A2DP and AVRCP
Operating distance: 15m
Music playback time: 10 hours
Standby time: 300 hours
Charging time: 2 hours
Battery:rechargeable 2*70mA/H Li-polymer battery 

Charging case: 300mA/H Li-polymer battery                 

Driver: 14mm
Frequency range: 50Hz-20KHz                                  

Weight of earphone: 9.8g                                          

Weight of charging case: 40g