【Easy to install and work for a long time】The motorcycle helmet Bluetooth headset is equipped with a mounting back clip, making it a breeze to install the motorcycle intercom kit on the helmet. In addition, the 1000mAh built-in battery ensures that it can work continuously for 18 hours and can standby for up to 260 hours on a single charge. Motorcycle Helmet Speaker Bluetooth Wireless[Intercom distance up to 300m, buy 2 pieces, can be used by 2 riders] The motorcycle helmet intercom kit will make your motorcycle journey more enjoyable. With this kit, you and your companions can easily have real-time conversations within a distance of 300m. Suitable for sharing the fun of motorcycle travel, skiing, skydiving and other activities. Motorcycle Helmet Intercom Headset[Strong adaptability] The Bluetooth motorcycle helmet speaker intercom system is suitable for various weather conditions, has IP65 waterproof function, and an operating temperature of -15~45℃. It fits most open-face helmets, modular helmets and full-face helmets perfectly, and can withstand harsh conditions such as dust, rain, storms and snow.【High Quality for Riding】The motorcycle headset is designed with 40mm large speakers and CVC&DSP noise suppression technology, the motorcycle helmet bluetooth allows you to enjoy high-quality sound during calls and music. Even when driving on the highway, you can still listen to clear music without being disturbed by wind, engine and traffic noise.