awei T63 Gaming TWS Bluetooth Earbuds(Black)

1. Bluetooth version: V5.3 Jerry AC6973D42. Support protocols: HSP, HFP, A2DP, AVRCP3. Battery capacity 33mAh (without protection board, headphone board lithium battery protection IC)4. Charging compartment battery capacity: 320mAh (with protective board)5. Speaker: 13MM6. Call duration 5H7. Play time: 6H (80% volume)8. Standby time: 300H9. Charging time 1.5H10. Speaker sensitivity: 109+/-3dB11. Speaker impedance: 32ohms12. Microphone sensitivity: -38+/-1dB13. Input charging standard: DC 5V14. Bluetooth working frequency: 2.402G-2.480G15. Frequency response range: 50~20kHz16. Transmission distance: Up to 15M17. Voice prompt: Support18. Multipoint connection: Not supported19. Wearing method: Semi-in-ear20. Interface: TYPE-C21. Waterproof level: IPX4