【Bright Bike Turn Signals】: Our smart bike tail light with turn signals is equipped with 38 powerful LED lights, up to 60 lumens, which is bright enough to be seen within 150 meters in fog/rain/or even during the day. This bike tail light also has a horn, which can also effectively remind the vehicle behind. What an intelligent bike LED light and safe cycling! 【Wireless Remote Control for Turn Signals】: Equipped with intelligent remote control, you can easily control the bike's turn signal lights, there are 5 modes: Left turn signal / Right turn signal / strong red light / strong yellow light / all lights flashing. Which can better attract the attention of other cyclists and make cycling safer for everyone. (Note: The maximum control distance of the remote control: 5 meters) 【IPX5 Waterproof USB Rechargeable】: IPX5 waterproof bike tail light is more convenient to travel with in rainy days, fog, bad weather or through puddles. Built-in battery with a capacity of 600mAh, which can be quickly charged via USB interface, 3 hours full charge, can reach 5 hours of long battery life. so you don't have to worry about the battery running out. 【Easy to Install】: Designed to be attached to the front and back of your bike, can be combined or used individually, these bike safety warning lights are suitable for mountain bike, road bike, mountain bike, dirt bike, scooter and so on. No tools needed, just hook on the durable rubber band mount and you're ready to ride. 【Long-term Worry-free Shopping】: Our bike safety light for day and night is made of high-quality ABS material, which is drop-resistant, durable and has a long service life.