【Product features】1.ABS helmet body, high impact resistance, heat resistance, low temperature resistance.2.High density EPS buffer layer, shock absorption, reduce impact force.3.With CSR4.2 Bluetooth headset, it supports automatic answering, listening to music, navigation broadcast functions.4.US: DOT certification, safe and reliable.5.Aerodynamic ventilation system Keeps your head cool and breathable.6.Comfortable and removable lining.7.Personalized off-road helmet set: helmet with goggles, face shield and gloves.8.Adjustable quick release buckle, firm and reliable.【Product specifications】Name: Motocross HelmetMaterial: ABS + EPSWeight: 1500gApplicable gender: men and womenApplicable age: adult and youthLining: Removable and comfortable liningCertification: DOT safety certification【Bluetooth specifications】Bluetooth version: CSR4.2Battery capacity: 500 mAhFunction: Standby time 120 hours; continuous listening for more than 20 hours; auto-answer; navigation broadcast.Features: host waterproof, clear keys; UK CSR8635 chip.Charging: USB port charging?【Package contains】1 * Motocross Helmet1 * Bluetooth Headset1 * Goggles1 * Face mask1 * GlovesNote: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!