The LIVALL C20 is a lightweight bike helmet with rear & brake light as well as fall detection and SOS emergency call. Safety and riding fun are inseparable on the bike. The brake & rear light positioned high on the head increases the rider's visibility. Especially in heavy traffic in the city, you will be noticed much earlier than with a conventional rear light. For all those who sometimes ride their bike alone, the LIVALL C20 has a very special feature: motion sensors continuously monitor the position of the helmet and detect when strong forces act on the helmet, as in the case of a fall. To ensure that it is always active when its owner is, the LIVALL C20 switches on automatically when the helmet is moved and deactivates after a set period of inactivity. Type Helmet Colour white EAN 6970173152834 Manufacturer's ref. 32001058 Suitable for bike Size Confection size M Head circumference 54 - 58 cm Closure Click lock Feature Rear light, SOS alarm, Brake light, Magnetic charging socket, 36 hours battery life, Bluetooth 4.1, Fall detection Further information To use the full range of functions of the helmet, the LIVALL app (Android and iOS) is required Weight 370 grams