Wireless Remote Control & 5 Modes Choice: Bike Tail Light with Turn Signal. Remote control the bike tail light to send signals in 5 different modes by the 3 easy to use buttons on the wireless controller. Include turn right + high decibel speaker, turn left + high decibel speaker, red light always on, red light flashing and all flashing, Remote control on handlebar, easy for cyclist to control during riding.Powerful Bike Tail Light & Cycling Safety: The bike tail light with turn signal has 32 high light LED lamp beads, 94mm in size, waterproof and rechargeable, Provides extra-wide 150 degree angle and 492 feet distance visibility for your night & daytime cycling safety.120dB Horn Speaker: Designed with 120 decibel alarm speaker for better security warning when you turn left/right. Help to get passerby and drivers' attention, securing your safety when riding in traffic.USB Rechargeable & Long Battery Life: 3 hours charging = 36 working hours duration. The Tail Light is built in rechargeable 900mAh lithium battery, It comes with a CHARGING CABLE that charges from your computer, power bank or any device with a USB port.Easy Installation & Fits Every Bike: The rechargeable bike red light installs in seconds without tools, the silicone mount strap for Taillight is designed with four openings that tightly fit around most size handlebars and seat posts, Suit for all type of bikes, road bike, mtb, hybrid and also can be used as helmet light, backpack light, wheelchair light, scooter light and skateboard light.