Ultra-bright LED LightWith high-end LED highlight beads, our bike turn light has brightness up to 15 LM, it's bright enough to be seen in dark night, making night cycling more safety. 4 Modes: turn left light, turn right light, red LED warning light, SOS warning light.USB RechargeableBuilt-in a 500mAh rechargeable battery, which takes 1-2 hours to fully charge and has a run time of 4-6 hours. Comes with a USB charging cable that can charge from your computer, portable charger or any device with a USB port.Wireless Remote ControlInstalled the remote control on the handlebar, easy to switch the lighting modes of the bike taillight by press the three buttons on the controller. The LED button on the remote control can control the red LED warning light of the tail light, and the left and right buttons can control the yellow LED direction indicator light.Daily WaterproofThe USB bike tail light is especially for night riding and low visibility conditions. Diving is not supported, wipe dry in time after rain. Provide security for your outdoor riding.Easy to Use & ApplicationTaillight and turn signal 2 in 1 design. Easy to install without complex operation. Mount onto your belt, backpack, dog collar, harness, or your bicycle, helmet, skateboard, scooter, stroller, wheelchair, etc. The bike turn signal light is the best safety equipment for cyclist.