Features: Equipped with rechargeable LED safety lights, providing 360 degree all-round visibility, it can effectively enhancing your cycling safety both day and night. Built-in turn light allows you to easily emit a turn by simply tapping the button on your helmet, increasing driving safety. Through the exclusive app, you can easily control the functions of the helmet, including LED light mode, turn settings, and real-time viewing of cycling data. Designed ergonomically to provide excellent wearing comfort. Adjustable straps and ventilation holes design ensuring proper fit. Suitable for multiple scenarios, not only cycling, but also outdoor exploration, leisure cycling and other occasions. Specifications: Component: PC shell+EPS buffer layer Color: black, white(optional) Size: approx. 20x14x25cm/7.87x5.51x9.84inch Function: 360 degree visibility and security Convenient turn function APP control and personalization Light in weight, comfortable and adjustable design Multipurpose helmet for adult men and women Package Includes: 1Pc Digital Display Adult Cycling Helmet note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.