awei TZ12 Sport Wireless BT 5.4 Air Conduction Earphones(Black)

1. Bluetooth version: V5.4 AB5656C2
2. Channel system: Stereo
3. Supported protocols: HSP HFP A2DP AVRCP
4. Battery capacity: 50mAh (without protection board, headphone board lithium battery protection IC)
5. Charging compartment battery capacity: 300mAH (with protection board)
6. Music playback time: 8H
7. Talk time: 7H
8. Charging time: 1H
9. Input charging standard: DC 5V
10. Sensitivity: 115+-3 DB
11. Bluetooth operating frequency: 2402-2480MHz
12. Frequency response range: 20HZ-20KHZ
13. Maximum transmission distance: 10M
14. Voice prompt: support
15. Multi-point connection: not support
16. Wearing method: ear hook
17. Waterproof level: IPX4, strong waterproof and sweat-proof function (only for earphones, the charging case is not waterproof)
18. Interface: TYPE-C