Bluetooth parameters:
Bluetooth version: V4.1+EDR compatible
Bluetooth chip: CSR
Wireless frequency: 2.4GHz-2.48GHz
Transmission power: Class 2
Operating voltage: 3.6V
Working current: 25mA
Transmission distance: 10m
Charging time: 1H-2H
Talk time: about 4H
Standby time: about 150H
Headphone function:
1. One for two
2. Power on vibration, shutdown vibration
3 call number, call vibration
4. Listen to music