Compact, stylish and weighing just 12g, with 550 hours runtime, the Wearable ｍini easily attaches to your bike, helmet, pack or pocket, and with a host of different modes, will enhance your visibility wherever you ride. Compact and low profileClip-on bracket for easy installation to backpacks, saddle bags, clothing and helmetRubber strap bike / helmet mount includedMagnet included3 modesCR2032 x 1Mode memory function