Helmet Intercom Headset: The two-way intercom function of the helmet bluetooth headset allows two riders to share their riding experience and enjoy real-time intercom calls within a 600-meter intercom range, which is especially suitable to travel with your family or friends. Hi-Fi Stereo and ENC Noise Control: Experience outstanding audio quality with our state-of-the-art 50mm PEN speakers, the advanced ENC Noise cancellation technology to reduce background noise, C9 motorcycle bluetooth headset deliver crystal-clear sound in any environment. 1000 mAh Longer Battery Life: C9 Bluetooth helmet speakers With an 1000mAh lithium-ion battery and USB-C fast charging, 50 hours of music Share/call/intercom, 70 hours listen to the music, 120 hours of standby, and the helmet headset takes only 1.5 hours to fully charge, ensuring that you'll have continuous use throughout the day. BT5.3 and IPX6 Waterproof: Bluetooth 5.3 with greater compatibility. C9 Motorcycle Helmet Speakers IPX6 waterproof rating to help you cope with more weather conditions. One-click to wake up voice assistant: C9 Motorcycle Helmet Bluetooth Headset has an intelligent voice assistant system. You can simply control button on the helmet headset and easily wake up your voice assistant or to take actions without taking your attention off the road. It also allows hands-free auto answer calls, making your ride and more convenient. Colour:Black Material:plastic Package Contents: 1 x Motorcycle Helmet Headset 2 x Mics 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.