【Large capacity battery/Dazzling light switching effect】Motorcycle Helmet Bluetooth There is a 1000mAh large capacity battery that can play continuously for 120 hours, allowing you to use the Helmet Headphones for longer periods of time while riding. The Headphones have multiple lighting switching effects, making you look cooler while riding. ！Tip: C50 does not have intercom function. If you need intercom function, please purchase A13 model intercom. | 【Automatic Answering Calls/Voice Assistant】C50 Helmet Speakers can automatically connect calls.When there is a phone call, you don't need to operate the buttons, the Earphones will automatically answer the call. Listen to music, and navigate. Make you safer while riding.The Motorcycle Headset have a voice assistant function and are easy to match. | 【Waterproof Technology】Helmet headset No disturb Dustproof and IPX7 Waterproof by using Nano coating technology,Can protect the headset safely in Outdoors.No worry about the rain or snow even. | 【Perfect Sound Quality】Motorcycle accessories By using windproof and more stable connection.Helmet Headphone DSP noise cancelling technology,Loud volume,this helmet headset transfers clear and high-quality stereo music sound.Compatible with all the smartphones with Can be used for Riding motorcycles, skiing, horseback riding,MP3,GPS Navigation are supportable independently. | 【Motorcycle Helmet Speakers EASY To In Stall】Helmet Speakers Design with detachable velcro,Easy to install it into the Helmet,fixed firmly. There are two installation methods: Velcro and clip.CE and FCC certification.Appearance patent, Bluetooth Association certification.The thickness of the headphone speaker is only 0.36 inches, suitable for all helmets, and will not squeeze your ears.