Specification
Model: BK-H7
Bluetooth version: Bluetooth 4.1
Protocol: HFP/HSP/AVRCP/A2DP
Talking time: Up to 5 hours
Music playing time: Up to 5 hours
Charging time: 1-1.5 hours
Standby time: 8-10 days
Communication distance: 10 meters

Note:
1. Please use the USB charging cable to full charge this Bluetooth headphone before you use it.
2. Please remember opening the Bluetooth function of your device when you pair this headphone with your device.