POWERFUL AND ABUNDANT FUNCTIONS: The half-face Bluetooth helmet headset incorporates an AI voice assistant, ANS Noise Reduction technology,directly connected at startup, Intelligent Dual-device Connection, Cool Lighting Effects, Intelligent Sound Mixing for a Delightful Listening Experience, as well as a humanized ear-fitting design with adjustable length in both vertical and horizontal directions and a 45-degree adjustable range for both inward and outward angles. Furthermore, this fashionable half-face Bluetooth headset is user-friendly in terms of both usage and installation. AI VOICE ASSISTANT: This bike/ebike/motorcycle/cycling/skiing helmet bluetooth headset supports voice control. You can say "Hi pangu" or activate the voice assistant on your phone. In this way, you can switch songs, answer or make calls, adjust the volume, etc. through voice commands. There are more surprises waiting for you to experience personally. It truly realizes the liberation of your hands during cycling. LONG WORKING TIME: The half-face helmet Bluetooth headphones are really great. They can work continuously for up to 20 hours. So you can use them for a long bike ride or an exciting motorcycle ride without the audio stopping. Also, these headphones have a smart power-saving function. If they're not connected to any Bluetooth device, they'll turn off automatically. This saves battery power and makes sure the headphones are ready when you want to use them again. With a long battery life and this smart power control, these headphones are very convenient and reliable for any outdoor activities. COMFORTABLE WEARING EXPERIENCE: This advanced half-face Bluetooth headset is carefully designed for supreme wearing comfort. Its ergonomic design ensures a gentle fit over the ears with no undue pressure, and the adjustable distance offers a personalized fit to ear contours. Thus, even during prolonged use, users can avoid ear pain and fully engage in activities like cycling, motorcycling, skiing, etc., while enjoying clear audio communication and entertainment. MULTIPLE APPLICATION SCENARIOS: This helmet Bluetooth headset is especially suitable for half-face helmets used in cycling, electric biking, motorcycling, UTV (Utility Task Vehicle), ATV (All-Terrain Vehicle), skiing, scootering and other multi-sports. The half-face Bluetooth helmet headset incorporates an AI voice assistant, ANS Noise Reduction technology,directly connected at startup, Intelligent Dual-device Connection, Cool Lighting Effects, Intelligent Sound Mixing for a Delightful Listening Experience, as well as a humanized ear-fitting design with adjustable length in both vertical and horizontal directions and a 45-degree adjustable range for both inward and outward angles. Furthermore, this fashionable half-face Bluetooth headset is user-friendly in terms of both usage and installation.