1. Bluetooth 5.0, external volume, FM function, shocking bass, hearing protection, built-in microphone, leather ear loops
2. HIFI sound quality, high resolution audio
3. High fit head beam, ergonomic and comfortable to wear
4. Hands-free calling, built-in microphone for wireless calling
5. Bluetooth 5.0 chip, no inductive delay, stable transmission
6. Folding telescopic design, easy to carry
7. Function: battery display, call function, NFC function, support music, multi-point connection
8. With A2DP/AVRCP high-quality stereo audio transmission and remote control protocol
9. Frequency response: 20-20000Hz
10. Battery capacity: 250mah
11. Power supply mode: USB charging / built-in lithium battery
12. Talk/music time: about 8-10 hours
13. Charging time: about 2 hours
14. Standby time: about 120 hours
15. Sensitivity: -42dB
16. Channel: Stereo
17. How to use: head-mounted
18. Transmission range: 10 meters
19. Charging voltage: DC 5V
20. Rated current: 1A
21. Rated power: 5W
22. Driver: 40mm
23. Impedance: 32 ohms
24. Weight: about 160g