1. BT 5.1, open lid connection, fast and stable transmission
2. Play music continuously for 5 hours in both ears, and 25 hours of battery life in the charging box, enjoy a whole day of music
3. Polymer composite diaphragm speaker, outstanding, musical instrument details, free to enjoy Hi-Fi sound effects
4. Built-in imported silicon microphone, filter outside noise, high-definition call
5. Ergonomic design, comfortable to wear
6. Wired and wireless dual charging type, it only takes 1 hour to fully charge
7. Support protocol: HSP/HFP/A2DP/AVRCP
8. Audio decoding: AAC/SBC
9. Corresponding range: about 15m (standard environment)
10. Frequency range: 2402-2480MHz
11. BT output power: 8dBm
12. Sensitivity: 116+/-3dB
13. Total harmonic distortion: less than or equal to 5%
14. Speaker: 13mm
15. Impedance: 32 ohms
16. Power: 3mW
17. Shell battery capacity: 400mAh
18. Headphone battery capacity: 30mAh
19. Music time: about 5 hours (80% volume)
20. Talk time: about 4h
21. Connection standby time: about 48h
22. Charging time: about 1h
23. Wireless charging time: about 3h
24. Number of cycles: 5 times
25. Charging input: DC 5V/1A
26. Waterproof rating: IPX5