[Bluetooth 5.1 Version]: The Bluetooth chip of Q7 helmet bluetooth headset is upgraded from the original 5.0 to 5.1, and the firmware is upgraded to V10.15.0, which fixes the problem of the device’s low call volume and makes the call more stable. | [CVC Noise Reduction Technology]: Q7 motorcycle bluetooth headset adopts advanced CVC noise reduction technology to eliminate the echo and ambient noise of the call, so that the sound you hear is more clear and stable, with 3D stereo sound effect. | [Multiple Functions]: With FM function, you can listen to enjoyable music and road conditions while riding. Waterproof grade IP65, freely use in rainy days. Compatible with mobile phones, GPS, MP3 and other bluetooth devices, with auto-receiving call, last phone number redial and voice assistant function. | [750mAh Battery Capacity]: Built-in rechargeable lithium-ion battery, Q7 motorcycle helmet bluetooth intercom only takes 3h to fully charge with type-C charging cable. The standby time can reach 260h and the call/music playing time is as long as 22h, which can meet the needs of long-time cycling calls. | [Wide Application]: EJEAS Q7 motorcycle intercom is suitable for most full-face helmets, half helmets and open helmets, and the installation is quite simple. It can be used together with our EUC remote control handle to keep your riding safe and comfortable.