1. motorcycle headset for smooth communication, clear intercom, two-person intercom/ noise reduction/6 level waterproof/Bluetooth 5.0. 2. With voice prompt function, it could help you achieve more precise operations, reduce errors, and communicate more quickly. 3. 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. 4. This product adopts a physical pressure button design to that you can clearly perceive the button operation while wearing gloves to prevent misuse. 5. Using a well-designed waterproof technology, the waterproof level of this headset has reached IPX6 without fear of wind and rain. 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 Size: 103 x 26 x 50mm/4.05 x 1.02 x 1.97inch(L x W x H) Upgrade two functions: 1. Increase the earphone volume, the sound be clearer. 2. You be to connect with products via Bluetooth, and have a smooth intercom. colour:Black Material:ABS+electronic components Package Contents: 2 x Earphone 2 x Base 2 x Integrated full helmet microphone speaker 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.