KUQIBAO Motorcycle Helmet Waterproof Bluetooth Headset With Screen(Hard Microphone)1. Bluetooth version: 5. 0 2. Charging voltage: USB5V 3. Battery capacity: 1200mAh 4. Bluetooth distance: 20 meters 5. Horn specification: 43 mm in diameter 6. Tone to noise ratio: 80DB 7. Working hours: 30 hours 8. Response frequency: 180 2000KHZ 9. Standby time: 180 hours 10. Level 6 waterproof, durable 11. Using coaxial two units, synchronous sound, clear sound quality 12. Microphone, DSP and CVC triple noise reduction processing 13. 1200mAh

HDD file system: FAT16

PD USB-C / Type-C Charging: Keep your devices powered up with fast and efficient charging

Input voltage: 5V

providing a comfortable fit for most wrists

It is easy to replace and will not cause damage to the watch

65inch * 15

Suitable for using in Europe and the United States

With switch control

33inch * 4

no need to disassemble frequently

Mask: thickened breathable PU mask

Type-c PD3