C20 Weight 390g Size: M: 54-58 cm L: 57-61 cm Usage: Bicycle, skateboard, skateboard, skateboard, bicycle, etc. The ideal parer for the city of Vieros A huge leap has been made in terms of security and protection of Vieros, and their approach is to safely move from A to B. LED lighting It integrates intelligent lighting technology and provides travelers with a high level of safety at any time and in any direction. Inductive LED lighting can be configured to automatically turn on even in the darkest environments. Brake warning light When the built-in gravity acceleration sensor detects significant deceleration, they are activated, and the front and rear lights are activated three times for search engine optimization to draw attention to surrounding traffic. Automatic on/off Intelligent ignition. Intelligent shutdown. When disconnected from the phone and kept connected, it will automatically shut down to ensure the maximum battery life Stay still for 15 minutes. Fall detection/SOS In the event on accident, the emergency system will automatically activate and send its GPS location to its emergency contacts within 90 SEOs. It needs to be configured through the Livall Riding application. Livall Cycg App Download the Livall Riding application on AppStore/Google Play to connect and configure the helmet.