Precise operation: With voice prompt function, it could help you achieve more operations, reduce errors, and communicate quickly. Clear voice: The U-band propagation is relatively stable frequency band wider, anti-interference ability strong, bringing a conversation experience. Easy to use: This product adopts physical pressure button design ensure that can clearly perceive operation while wearing gloves prevent misuse. Waterproof: Using well-designed waterproof technology, level of headset has reached Ipx6 without fear wind rain. Wide applicability: helmet suitable for many types helmets on market, such as full helmets, off-road half visor retro etc. Type: Motorcycle Bluetooth earphone Battery: Built-in 3.7v 800mAh battery Charging Time: less than equal 2h Call 12h Standby greater 240h Version: 5.0 Level: IPX6 Material:ABS+metal colour:Black Package Contents: 2 x Base microphone cable Only above content, other products are not included. Note: Light shooting different displays may cause color item in picture little from real thing. measurement allowed error +/- 1-3cm.