1. Channel: Mono 2. Function: voice control, call function 3. Features: Bluetooth 4.2, intelligent noise reduction, wide compatibility, high-definition call, long-lasting battery life, hearing protection, pleasant sound quality, full ear coverage, adjustable head beam 4. Battery capacity: 120mah 5. Transmission range: 10 meters 6. Life time: 6 hours 7. Talk time: 4-5 hours 8. Charging time: 2.5 hours 9. Bluetooth version: 5.0 10. Plug type: USB 11. How to use: head-mounted 12. High-quality materials, beautiful and durable: the built-in speaker has a better sound quality 13. Telescopic head ring: free to adjust and stretch 14. Soft earmuffs: effective sound insulation, reducing sound leakage, built-in high-quality sponge for comfort and ventilation 15. HD sound quality, comfortable to wear: efficient Bluetooth pairing 16. Single-point noise reduction microphone: The threaded design at the turning point inside the microphone rod makes it easy to adjust the position of the microphone and accurately locate the voice call more smoothly 17. Rotating straw: ergonomic design, lengthened microphone boom, 360° card position rotation and precise positioning, long-lasting smooth voice output
