Description 1. BT 5.2 dual-core chip, instant connection, stable transmission without delay 2. 120 hours standby, 5 hours binaural listening, up to 24 hours total listening time with case 3. Polymer composite diaphragm moving coil speaker, outstanding instrument details, free to enjoy Hi-Fi sound effects 4. Connect after opening the shell, touch technology, comfortable to wear 5. Support wired and wireless charging, wired charging can be fully charged within 1 hour 6. Support protocol: HSP/HFP/A2DP/AVRCP 7. Audio decoding: AAC/SBC 8. Communication range: less than or equal to 15m 9. Frequency response: 20Hz-20KHz 10. Speaker sensitivity: 119+/-3dB 11. Distortion rate: less than or equal to 5% 12. Drive unit: 13mm 13. Impedance: 32 ohms 14. Power: 3mW 15. Charging box capacity: 320mAh 16. Headphone battery capacity: 30mAh 17. Music time: about 6 hours (volume 70%) 18. Talk time: about 5 hours 19. Connection standby time: about 120 hours 20. Headphone charging time: about 1.5 hours 21. Charging time of the box: about 2 hours 22. Wireless charging time: about 3 hours 23. Support charging headset: 4 times 24. Product size (charging box): 44x22x53.8mm 25. Product net weight: 48g+/-2g
