1.rechargeable and waterproof, 2. 8LED+2 laser diode,continuous working 6- ... Use As to the city roads become more and more complex,along with the bicycle enthusiasts quantity is daily up, ... 5 A Charge voltage 4.2-5VDC-500 mABattery: 14500 rechargeable battery, capacity 1200 mAh, voltage 3.7VWork Time: continuous ... off.4.PackageA bicycle laser light,a piece of USB data line,a 3.7v charger,2 rubber strips ...