MH10 Sports Folding Card Wireless Bluetooth Subwoofer Headset(Silver)

1. Bluetooth 5.0, card playable, FM function, subwoofer, foldable and retractable2. Foldable appearance, adjustable headwear size, high applicability3. 40mm silver-plated diaphragm, acoustic structure cavity, clear hearing4. Hands-free calling, built-in microphone for wireless calling5. Bluetooth 5.0 chip, no inductive delay, stable transmission6. Sealed earmuff design, effectively block external noise7. Protein leather comfortable earmuffs, comfortable to wear8. 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 4-5 hours13. Charging time: about 2 hours14. Standby time: about 100 hours15. Sensitivity: -42dB16. Channel: Stereo17. How to use: head-mounted18. Transmission range: 10 meters19. Charging voltage: DC 5V20. Rated current: 1A21. Rated power: 1W22. Standby current: 1.6mA23. Impedance: 32 ohms24. Function: battery display, call function, NFC function, support music, multi-point connection