KUQIBAO Motorcycle Helmet Waterproof Bluetooth-compatible Headset With Screen 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 lithium battery, strong battery life, music playback time more than 30 hours, talk time more than 20 hours 14. LCD liquid crystal display, graphic symbol prompts, intuitive page, easy operation Voice control, short press to wake up the mobile phone voice assistant 15. Can connect two mobile phones at the same time 16. There are manual and automatic call answering modes, long press the phone key for 2 seconds to reject the call 17. After connecting the smart device, turn on the mobile phone to display the remaining power (a small number of mobile phones do not display) Packing list: - Earphone sticker x 1 - Headphone booster pad x 1 - Headset (optional) x 1 - Soft microphone sticker x 1 - Paste main unit base x 1 - Host x 1 - Host iron clip x 1