【Effective Distance 20m】If the Motorcycle Helmet Bluetooth headphones do not work, please charge the headphone battery first. One Helmet Bluetooth Headset wirelessly connected to two mobiles at the same time,Automatic connection and enjoy music,strong signal connection.Provide efficient and convenient communications in the riding.Can automatically answer calls, voice assistant function.

【Long Play Time】 Helmet Bluetooth Headset Built in 900mAh rechargeable Li-ion battery,Long stand-by and working time.Support 60 hours continuous talking and playing time, 500 hours standby time.Charging time 2 hours.Support display battery on phone.

【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.

【EASY To In Stall】Helmet Speakers Design with detachable velcro,Easy to install it into the Helmet,fixed firmly. CE and FCC certification.Appearance patent, Bluetooth Association certification.Important: please check whether the size of your helmet is appropriate before buying, and look at the size of our headphones. You can see the size of headphones in the picture introduction.If you have a problem with your helmet headset, please contact us at Amazon Buyer Center, and we will reply to you within 12 hours. TIP:If you cannot hear sound from your helmet headphones while riding at high speeds, please add a Velcro behind the headphone speakers to reduce wind noise. Or ride slowly.