SAFETY CERTIFICATION - Modular flip up motorcycle helmet, features advanced flip up design that enables you to get more air without taking off the whole helmet. The Motorcycle Helmets meets the safety standard requirements of DOT FMVSS-218 This means that it has been approved for all road traffic in American. It is a very important safety tool in your outdoor life. BLUETOOTH HEADSET - The Motorcycle Bluetooth Helmet uses high-quality Bluetooth technology to provide stereo bass surround sound quality, automatic answering, song playback, and active noise reduction during calls. Ultra strong signal transmission, ultra low power consumption, supports all Bluetooth devices, and can display power directly on the phone. DUAL VISOR - The external sunshade is sturdy and elastic, with good impact resistance, while the large area design also maintains a wide field of view; The internal dark sunshade can protect the eyes from sunlight and can be hidden or opened.