Awei A886BL Air Conduction Wireless Headphones Bluetooth

Awei A886BL Air Conduction Sports Wireless Headset 1. Bluetooth version: V5.2 Zhongke Lanxun 5616B 2. Support protocol: --Hands Free 1.6/ -Headset 1.1/ -A2DP 1.2/ -AVRCP 1.5 3. Channel system: stereo sound 4. Call time: 7h, playing time: 7H 5. Charging time: 1.5H 6. Charging warehouse capacity: 240mAh 7. The best call distance: about 1M 8. Maximum transmission distance: about 8-10m 9. Voice prompt support 10. Veter diameter: 18mm 11. Bluetooth operating frequency: 2.402G-2.480g 12. Methods: hanging formula