:IO USB Set SET OF USB RECHARGEABLE BICYCLE LIGHTS   KLS :IO SET consists of two compact all-weather-proof front and rear bicycle lights. Thanks to CNC-machined aluminium body of minimalistic design and tool-free mount :IO is lightweight, durable and fits to every bike. Additional helmet bracket allows you to fix-up whole set on top of your helmet. It makes you visible better and allows you to feel safer instantly. Helmet bracket is compatible with most of HD adventure camera mounts.   •      Compact and durable light for everyday ride •      Minimalistic design jewels your favourite bike •      All weatherproof •      Tool-free silicone ring allows you to fit the light on every common handlebar, seatpost, or other parts of your bike •      Large optical lenses work as accessible button switch. Operate your light without stopping your ride •      Double-click switch avoids your light to turned on accidentally when carried inside your bag •      You can re-charge these lights by using Micro USB wire anytime, and don’t have to buy any more batteries. Besides that – you are also protecting nature •      Long lasting battery allows you to charge it up at least 500 without significant capacity drop   DETAILS OF FRONT LIGHT Lighting output: 50lm Light Source: 1x LED Functions: 100%, Pulse, Flashing Battery lifetime: 2,5hrs (100%),7hrs (Pulse), 13hrs (Flashing) Charging time: 1hr Battery type: Li-pol 220mAh IPX 4 (Water resistant)   DETAILS OF REAR LIGHT Lighting output: 15lm Light Source: 1x LED Functions: 100%, Pulse, Flashing Battery lifetime: 2.5hrs (100%),7hrs (Pulse), 13hrs (Flashing) Charging time: 1hr Battery type: Li-pol 220mAh IPX 4 (Water resistant)   BUYERS OPTIONS Colour: anodised black, red, blue, turquoise, purple and natural silver   INCLUDES Helmet bracket USB cable User manual   COMPATIBILITYAll common sizes of handlebars and seatpost