Bright Bicycle Turn Signals: Our smart bike tail light with turn signals is equipped with 40 high power LED lights beads, the brightness is enough to be seen from 300 Meters away in rainy/foggy day/dark nights or even during the day. Simply turn on left/right turn signals through the wireless remote control and get drivers' attention, ensuring the cyclist's safety during riding.Remote Control and 5 Modes: The bike tail light with 3 buttons remote controller to control bike turn signal lights. There are 5 modes: left turn signal/ right turn signal/ bright red light/ bright yellow light/ all light flash. You can change different modes according to your needs and occasions to get a fine lighting experience and protect yourself.IPX4 Waterproof: IPX4 Waterproof level make this bike turning light can be used in small to moderate rain, resistant to protect from weather changes or daily splashes, and perfect for night riding, mountain biking, and dog working.USB Rechargeable Bike Turn Signals: The bicycle light is very bright, built-in 1200 mAh battery, our bike tail light can last 9 hours, the bike tail light only takes 3 hours to fully charge, and you can fully recharge the bike taillight with USB devices like a power bank, car charger or ac outlet adapter.Easy to Install: This wireless rechargeable bicycle light is easy to install and use, it can install quickly without tools, and the silicone mount strap for Taillight is designed with openings that can tightly fit around most size handlebars and seat posts.