1. motorcycle headset for smooth communication, clear intercom,noise reduction/IP67 waterproof/Bluetooth 5.0. 2. Suitable for Half Helmet shapes, easy installation 3. Whisper in the ear, clear intercom, U frequency band has the characteristics of relatively stable transmission, wide frequency band, clear voice, convenient mobile communication, and strong anti-interference ability. It is widely used in radio communication. 4. IP67 waterproof is not afraid of challenges, carefully designed waterproof technology, not afraid of wind and rain, durable, not afraid of challenges. 5. Pressure button, anti-misoperation, physical pressure button design, to that the blind operation with gloves can be clearly perceived and accurately operated during riding Bluetooth version:5.0 Battery:3.7V/1000mAh length of work:17H Waterproof grade:IP67 Bluetooth distance:30M (MAX) Intercom distance:1000M (MAX) open road section in the suburbs Microphone speaker:Half Helmet Colour:Black Material:ABS Size:86x40x26mm Package Contents: 1 x earphone 1 x fixed Base 1 x microphone speaker 1 x charging cable 1 x English manual Only the above package content, other products are not included. Note: Light reflection 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.