Version: Bluetooth 5.0 +EDR
Battery: 50mAh(each earphone) 380mAh(charging base)
Use Distance:10m
Using time: 2.5h
Standby Time: 80h
Charging Time: 2h
Buildwin chipset
Good voice and good quality for this new item. It's the newest design for 2019 market all of the world , we will try our best to provide the service for all of you.