Description 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
