Smart Bright Bicycle Taillight: our bike tail light rechargeable is equipped with LED lights, providing excellent lighting to ensure the safety of long distance riding in rainy and foggy weather, making your night trip more convenient and safe; This is a nice taillight for your bike and makes an ideal gift for family or friends (Tips: when the turn lights are turned on, the prompt sound will be turned on, turn off the turn signal sound will be off)With Remote Control: this bike back light has left and right turn signals that can be turned on by remote control; There are 5 modes, which can better attract the attention of other riders and make each other's riding safer (Tips: the turn signals are paired; If some are not paired, please press and hold the turn lights and the remote control for 3 seconds to pair; If the remote control does not light up, it means that the battery needs to be replaced)Easy to Install and Adjust: this bicycle light is compatible with most mountain bikes and road bikes and is easy to install and use; This bike taillight has a 270 degrees viewing range and can be angled to suit your needs to get the best viewUSB Rechargeable: the light for bikes at night can be connected to the computer, mobile power supply for charging via USB cable, without frequent battery replacement, saving time and energyDurable and Long Lasting: our bicycle tail lights are mainly made of quality plastic materials, which are wear resistant and have a long service life, providing you with a safe driving experience