Specification:

1. Bluetooth version: 5.3 (Jieli AC6973D4)
2. Support protocols: A2DP, HFP, AVRCP
3. Battery capacity: 30mAh*2 (without protection board but IC)
4. Battery capacity of charging case: 300mAh (with protection board)
5. Charging time: 1.5H
6. Talk time: 4.5H
7. Play time: 5H
8. Standby play: 300H
9. Horn parameters
10. Diameter: 10mm
11. Sensitivity: 97±3dB
12. Impedance: 32Ω±15%, at 1KHz
13. Mic parameters
14. Sensitivity: – 39dB±2
15. Impedance: 150Ω
16. Maximum transmission distance: 10M
17. Bandwidth: 100KHz-5KHz
18. Voice prompt: supported
19. Multi-point connection: unsupported
20. Wearing method: in ear
21. User manual: Chinese and English
22. Interface: Type-C
23. Waterproof rate: IPX5
24. ENC depth (Fourl mic for call): ＞- 35dB