Bluetooth Modular Motorcycle Helmet DOT Approved Full Face Flip up Anti-Fog Double Visor Helmet Street Bike Helmet Built-in Dual Speaker with Microphone(Type B Black Lens,XXL=(63-64CM))

["⭕⭕⭕【Note】: The physical shell size of the helmet itself remains constant; the actual fit—or \"size\"—of the helmet is determined by the thickness of the internal \"liner.\" It is the thickness or thinness of this liner that dictates the helmet's specific size! Therefore, if you find the size unsuitable, we will send you a replacement helmet liner.","➕【Dual Visor & Chin Liftable Helmet】These 2 cool features make our helmet more cost-effective and competitive. HD dual visor has sun protection and wear-resistant function, the retractable sun glasses inside of the helmet will be put to good use as we are trail riding; the modular flip up chin guard can easily change it to be open face motorcycle helmet or full face snowmobile helmet.","➕【Dirt Bike Helmet Design】The full face helmet adopting aerodynamic design to provide fairly good looking, pretty good fit and feel, as well as reduce resistance from wind and air. Totally 3 ventilation holes to ensure air circulation and release inner heat, quality soft helmet liner materials also a key component to keep comfortable.","➕【Chin Strap & Inside Liner 】The full face motorcycle helmet has quick release chin strap, especially convenient for one wanting that a single unit have both easy to use buckle and chin liftable for lunch breaks along roadtrips. Inside liner material is comfortable soft and skin-friendly, removable and washable, easy to put on and off.","➕【Motorcycle Helmet Safety Certification】The Bluetooth Motorcycle Flip-Up Helme meets the requirements of DOT FMVSS 218 safety standard,the helmet includes 3 protection layers: anti-collision ABS material shell, high density elastic cushioning EPS, skin-friendly soft lining and breathable sponge; take a little time getting used to having head fully enclosed but feel much safer with it.","➕【Bluetooth + Microphone】Flip up front motorcycle bluetooth helmet Built-in Bluetooth CSR5.0 chip power amplifier, stereo bass surround sound quality, auto answering, song playback, built-in FM radio, active noise cancellation for calls. lithium polymer battery, continuous song listening for 20H, standby 80H."]