1. Headphone head retractable mode
2. Comfortable close to the ear, comfortable engineering design
3. Long stretchable cord, easy to use
4. CVC6.0 intelligent noise reduction technology
5. High-quality 6mm composite diaphragm unit, high resolution, three-frequency balance, delicate vocals, strong bass
6. Charging time: 1-2 hours
7. Standby time: about 150 hours
8. Listening time: 9 hours
9. Talk time: about 11 hours
10. Features: One for two, start-up vibration, shutdown vibration, incoming call number, incoming call vibration, audible music
11. How to use: Lavalier
12. Transmission range: 10 meters
13. Function: battery display, call function, voice control, support music, multi-point connection
14. Bluetooth protocol: V5.0+EDR compatible
15. Bluetooth chip: BK
16. Wireless frequency: 2.4GHz-2.48GHz
17. Transmission power: Class 2
18. Working voltage: 3.6V
19. Working current: less than or equal to 25mA
20. Battery capacity: 120mAh
21. Size: 26.5x59x16mm