1. motorcycle headset for smooth communication, clear intercom,noise reduction/IP67 waterproof/Bluetooth 5.0. 2. Suitable for Full 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, , 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:Full 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.