【The earphones sound loud】You can play music and answer phone calls during high-speed cycling.Enable you to hear music and clear calls while cycling, Motorcycle Bluetooth Headset with a stable Bluetooth connection that won't disconnect, allowing you to ride with peace of mind. Adopting DSP noise reduction technology. Has bass and treble effects. | 【1200 milliampere high capacity battery 】Bluetooth Helmet Speakers supports 2 hours of fast charging, can play continuously for 160 hours, and has a standby time of 600 hours. The battery level of the earphones can be displayed on the phone, making it convenient for you to operate. | 【Hl-Fl sound quality】 High/low pitch effects. When cycling the sound is loud. 3D sound quality.Stable connection during cycling, not disconnected, and loud music playback Bluetooth 5.3 chip for more stable audio transmission. Helmet Bluetooth can automatically answer calls, making it safer for you to ride. | 【Ultra thin speaker】Bluetooth Motorcycle Helmet It can be used inside all helmets, and the thickness of the earphone speaker is only 0.38 inches, which will not squeeze your ears.Intelligent Voice Assistant，Double click the minus button (-) to start the voice assistant. The earphones have dazzling lights that can automatically switch between 4 different colors of light. | 【EASY To In Stall】Design with detachable velcro,Easy to install it into the Helmet,fixed firmly. 2 minute quick installation completion There are soft and hard microphones, supporting various helmet installations.. CE and FCC certification.Appearance patent, Bluetooth Association certification. 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.