MH4 Mobile Phone Subwoofer Wireless Bluetooth Sports Headset(Blue)

1. Bluetooth 5.0, external volume, FM function, shocking bass, hearing protection, built-in microphone, leather ear loops2. HIFI sound quality, high resolution audio3. High fit head beam, ergonomic and comfortable to wear4. Hands-free calling, built-in microphone for wireless calling5. Bluetooth 5.0 chip, no inductive delay, stable transmission6. Folding telescopic design, easy to carry7. Function: battery display, call function, NFC function, support music, multi-point connection8. With A2DP/AVRCP high-quality stereo audio transmission and remote control protocol9. Frequency response: 20-20000Hz10. Battery capacity: 250mah11. Power supply mode: USB charging / built-in lithium battery12. Talk/music time: about 8-10 hours13. Charging time: about 2 hours14. Standby time: about 120 hours15. Sensitivity: -42dB16. Channel: Stereo17. How to use: head-mounted18. Transmission range: 10 meters19. Charging voltage: DC 5V20. Rated current: 1A21. Rated power: 5W22. Driver: 40mm23. Impedance: 32 ohms24. Weight: about 160g