[Ultra to Keep You Safe]: 260 degree wide angle design provides more visibility than other lights. What's more , the COB lamp beads produces super light to make this rear bike light can be seen from a good distance, which can enhance maximum your cycling safety. [Wireless Remote Control]: The remote control installed on handlebar allows you to switch the lighting modes by using the buttons on the wireless controller during riding. Perfect for as bike tail light, a helmet light ,a caution light on a stroller or a camping light [6 Light Modes & Waterproof]: Turn left light, Turn right light, Brake light, Steady red light, Fast Flash, Flowing Light. Weather design ensures all condition . [USB Rechargeable:] Stop Wasting Your Money and Never Buy Batteries. The bicycle tail light charges from your computer or any devices with USB port.Only takes 2 hours to fully charge but can work up to 12 hours in constant brightness mode. [Easy to Install]: Horizontal or Vertical Mounting, 360 mountable cycling blinker installs and flexible detaches around any handlebars, post, frame or helmet in seconds with no required. : 100LM Battery: 500mAh Beads: COB Weight: 30g Size: 88x19x30 mm Charging: USB rechargeable (about 2hours) Battery Indicator: Green, red Running Time: 5-15 hours Light Modes: Steady-Flash-Strobe Colour:black Material:ABS Package Contents: 1 x Bike Light 1 x Remote Control Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.