Precise operation: with voice prompt function, it could help you achieve more precise operations, reduce errors, and communicate more quickly. Clear voice: the u-band propagation is relatively stable and the frequency band is , and the anti-interference ability is strong, bringing you a clear conversation experience. Easy to use: this product adopts a physical pressure button design to that you can clearly perceive the button operation while wearing gloves to prevent misuse. Waterproof: using a well-designed waterproof technology, the waterproof level of this headset has reached ipx6 without fear of wind and rain. Wide applicability: this helmet headset is suitable for many types of helmets on the market, such as full helmets, off-road helmets, half helmets, visor helmets, retro helmets, etc. Type: motorcycle bluetooth earphone Battery: built-in 3.7v 800mah battery Charging time: less than equal 2h Call time: 12h Standby time: equal 240h Bluetooth version: bluetooth 5.0 Waterproof level: ipx6 Material:abs+metal Colour:black Package contents: 2 x earphone 2 x base 2 x full helmet microphone 2 x charging cable Only the above package content, other products are not included. Note: light and different displays may cause the color of the item in the picture a little different from the real thing. the measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.