Awei T1 Pro True Sports Earbuds(Black)

Awei T1 Pro True Sports Earbuds(Black)Product details 1. Bluetooth version: V5.3 Jayli AD6973D4 2. Support protocol: HSP/HFP/A2DP/AVRCP 3. Call time: 7H 4. Playing time: 6H 5. Charging time: 1H 6. Charging warehouse capacity: 300mAh 7. The best call distance: about 1M 8. Maximum transmission distance: about 10m 9. voice prompt support 10. Veter diameter: 10mm 11. Frequency response range: 20H-20KH 12. PX6 level waterproof/sweat-proof function 13. Sensitivity: 100.1db