☞Bluetooth function: stereo sound quality, automatic call answering, song playback, FM radio, waterproof, noise reduction technology, with Intercom function.▶▶Helmet Features:☞ABS shell, high impact resistance, heat resistance, low temperature resistance.☞High density EPS buffer layer with comfortable inner lining to reduce the impact of cushioning, removable and washable.☞US: DOT certification, EU: ECE 22.05 certification standard.☞Double sun visor design: sunshade and anti-glare.☞Aerodynamic ventilation system: The ventilation system adopts streamlined design, omni-directional ventilation, and not stuffy.☞Quick release buckle for easy wearing.☞Reflective material at the bottom of the helmet, safer during driving.【Product specifications】Name: Bluetooth Modular Motorcycle HelmetMaterial: ABS plastic shell + EPS foam buffer layerWeight: 1750 gApplicable gender: men and womenApplicable age: adultLining: removable lining【Package contains】1 * Modular Motorcycle Helmet1 * Bluetooth IntercomNote:▶ The measurement of the helmet size is a manual measurement, there may be an error of 1 ~ 2 cm.▶ If you are not completely satisfied with our products, please contact us, customer service will serve you within 24 hours!