【Ultra thin headphones】Headset thickness of only 0.3 inches,won't squeeze your ears, suitable for all helmets. The earphone speaker has a loud sound,and you can hear it when riding at high speed.The Bluetooth connection is stable and will not be disconnected.Suitable for different helmet types It is suitable for all kinds of helmet types, adhesive isallation,clip installation, two in one soft and hard wheat. | 【800mA battery Long Play Time The battery】 Capacity of the earphones is 800 hours,which can play continuously for 90 hours.You don't need to charge them for a week when traveling outdoors,so you don't have to worry about charging the helmet earphones.Connect two mobile phones at the same time,The phone can display the battery level of the headphones. | 【Easy installation】There are Velcro stickers in the headphone packaging box,with different models of Velcro stickers and clips.The headphones can be installed inside the helmet in 2 minutes.Two in one soft and hard microphones,Clip on base inside the packaging box,Adhesive base,Adhesive base hook surface velcro,Horn Velcro.It can be installed conveniently according to your needs. | 【Perfect Sound Quality Play loud】CVC Noise Cancellation Stereo Music。Helmet Headphone DSP noise cancelling technology,Loud volume,this helmet headset transfers clear.Compatible with all the smartphones with Can be used for Riding motorcycles,skiing, horseback riding,MP3,GPS are supportable independently.Ensure can still let the other party hear your voice clearly when driving at high speed. | 【IP67 Waterproof】Abs+ silicone compact structure design provides deep Protection for internal parts,fearless of wind and rain, and smooth riding.Voice assistant Wake up with one button Play music,travel navigation, make phone calls,and ride more easily and conveniently. | 【Tips】Before purchasing, please check if the size of the helmet is suitable.Please refer to the main picture for the size of the earphones. We provide excellent customer service with a 2-year warranty on headphones.We will respond to your needs within 12 hours.If there are any quality issues with the headphones, you can contact us.We will replace the problematic product for you for free,and you can also contact us at the Amazon customer center.