Multi-Function Bike Tail Light: Our bicycle direction light has multiple functions, It can be used not only as a turn signal but also as a brake light. In addition, its unique flashing, horn and buzzer functions provide you with great night safety protection. Be safe in the day and night riding. The best outdoor cycling safety equipment can be a gift for your family and friends.Wireless Remote Control: This bicycle lights with 2 colors changes for indicating, control the turn lights for bicycles to send signals in different modes by the 4 easy to use buttons on the wireless controller. 5 Modes: turn left light(beeper), turn right light(beeper), red led warning light, red strobe light and double arrow flashing warning light(beeper). The remote control on handlebar, easy for cyclist to control during riding.Rechargeable: Rear bike lights uses a built-in 500mah rechargeable battery, USB charging is convenient and fast, and it can work for about 6 hours under constant brightness. Charging time: 1-2hours. The LED bicycle light comes with a charging cable, which can be charged from any of your devices with USB ports, such as laptops, car chargers, mobile phone chargers, power banks, etc. The remote control is powered by a button battery, 2 batteries are included.Waterproof & Easy To Use: Our bike lights are waterproof, and can be used as usual even in rainy days, and it's easy to use and install, package includes adjustable silicone strap, make the bicycle rear light flexible to quick install or detatch.The bike tail light can be easily installed in seconds without tools.Widely Applicable: High-quality remote-control LED directional lights are suitable for all kinds of bicycles, mountain bikes, road bikes, off-road vehicles, racing cars, etc. Also can be used for pram, jogging, walking, road emergency and camping at night and other outdoor sports as a warning light, strengthened the safety factor of the night travel.