【What functions does the bicycle turn signal have?】: There are 4 advanced bicycle turn signal modes: left turn signal, right turn signal, red and blue flashing LED light, double arrow flashing light. The main light is red, the left and right turn signals are yellow. There are four settings, just like a car or motorcycle, a clear arrow lights up indicating \"left\", \"right\" and \"danger\". 【What about USB charging?】🚵‍♂️: Our bicycle taillights use a built-in 500mAh rechargeable battery, USB charging is convenient and fast, and it can work for about 5 hours under constant brightness. The LED bicycle light comes with a charging cable, which can be charged from all your devices with USB ports, such as laptops, car chargers, mobile phone chargers, power banks, etc. 【Wireless Remote Control】🚵‍♂️: The smart taillight with turn signal is a wireless control system installed on the bicycle's head. The taillight functions can be easily controlled via three easy-to-use buttons on the wireless control unit, providing extra safety while riding. 【IPX2 Waterproof Rating】🚵‍♂️: The high-quality bicycle indicators can fully withstand rain and wet weather, and it is designed to provide waterproof function for outdoor bicycles. The best safety equipment for outdoor cycling can be a gift for your family and friends. 【Why choose the combination of taillight and headlight?】🚵‍♂️: Bicycle turn signals and matching headlights are perfect for all types of bicycles: mountain bikes, road bikes, off-road vehicles, racing cars, etc. When riding at night, the headlights emit bright light to illuminate the road ahead, and the taillights with steering function can warn people behind. This bicycle light combination kit can significantly improve your night riding safety factor. Usage methods: First, open the rubber charging port on the back of the taillight turn signal and insert the USB charging cable to charge. Press and hold the taillight power switch, press the control button when the LED indicator flashes to correct the password, then it can be installed and used. Install the taillight and control unit with the corresponding components and finally place them in the appropriate positions on the bicycle.: NOTE: If your bicycle turn signal cannot connect to the remote control, there are two situations: Firstly, the power of the bicycle taillights and the remote control is not sufficient. The remote control's power must be kept above 2.8v to control the lights. If it is lower than 2.8v, it will be insensitive and unable to control; The taillights are easy to install and you can easily remove them to prevent them from being lost when you leave. The remote-controlled bicycle turn signal is very easy to install. There are three steps: Take out the taillight and attach the fixing ring to the side of the buckle and pass it through the rear seat post. Pass the rear seat post and attach the other end to the other side of the buckle. Attach the control unit to the handlebars in the same way, you can change the taillight mode while riding. Why choose our taillight turn signal? The bicycle taillight is equipped with a USB charging cable. You can quickly charge it anytime, anywhere with a power bank, personal computer, car power supply, etc. The battery life can reach 5 hours to protect safe riding. This remote-controlled bicycle taillight also has an IPX2 waterproof function, so you can travel on rainy days without damage. Note: You cannot soak the taillights in water.