awei A780 Pro Wireless Stereo Headphones, A780 Pro

1. Bluetooth version: V5.3 JL7006
2. Battery capacity: 500mAh
3. Bluetooth protocol: HFP1.7, A2DP1.3, AVCTP1.4, AVDTP1.3, AVRCP1.6
4. Channel system: stereo
5. Endurance time: about 13h (with lights), about 55h(no lights)
6. Charging time: about 1.2H
7. Frequency range: 20-20kHz
8. Call distance: about 1M
9. Maximum transmission distance: about 10M
10. Speaker parameters:
- Sensitivity: 119DB
- Output power: 30-50MW