1.Bluetooth V5.0 ( PUA1623 )
2.Earphone battery: 2 x 45mAh
3.Dock battery : 500mAh for 28 hours play time
4.Earphone charging time: about 1.0 hours for 5.5 hours working time
5.Dock charging time: about 2 hours for 300 hours standby time
6.Color : Black
