Smart Brake Indicator is an ultra-bright smart LED brake light that instantly improves a motorcycle's visibility. It mounts on the back of the helmet you already own and its sensors work automatically to let others know whenever you slow down--braking, engine braking, or downshifting. No need for a wired installation or connected apps. LS2 smart helmet indicator can be charged with a C-type cable & can be solar charged as well. With 2 flashing modes. Simply mount the "LS2 Logo magnet" inside the box onto the helmet, place the Smart Brake Indicator on the magnet and you're ready to go.