BT V5.0 Active noise-cancellation
Automatic turn on/ off
Wireless Fast Charging function

Bluetooth version：V5.0
Chip Model：CSR QCC3001
Signal Distance：13 M
Battery capacity: Earphone 50mAh ; Charging box 500mAh.
Charging time: 1-2  Hours
Talking time : 4-8  Hours
Working time: 4 -6 Hours
Standby time: 100 Hours
Waterproof  Class : IPX5
Active noise-cancellation function
Auto turn on/ off and pairing connection