Description: 180-Degree field of view width, visibility up to 150m, bike tail light bright has 40 of 100LM LED lights, bright enough to be seen from 150m away in foggy/rainy day or even in dark night. offers super brightness for you but not dazzlingWIRELESS REMOTE CONTROL & 4 Modes:Remote control the turn lights for bicycles to send signals in different modes by the 3 easy to use buttons on the wireless controller. Remote control on handlebar, easy for cyclist to control during riding. Suitable for Mountain, MTB and Road Bicycles. 4 Modes: turn left light, turn right light, red led warning light, SOSUSB RECHARGEABLE: rear bike light use 500mAh Li-on battery, allow the bike taillight usb rechargeable to be fully charge in 2 hours and can work for about 5 hours under constant brightness. Save the time to replace batteries every week. NEVER waste money on batteries again. led bike light comes with a CHARGING CABLE that charges from your computer, power bank or any device with a USB port. IPX2 WATERPROOF: bike brake light IPX2 waterproof function can resist the rainy days and humid climate, waterproof designed for bike outdoor. The best safety equipment for outdoor riding can be used as a gift for your friends and relativesBike light back hook onto your belt, running gear, reflective vest, backpack, , harnesses, or anywhere on your clothing. Mount to your bicycle, helmet, skateboard, scooter, stroller, wheelchair, or anywhere you can imagine. Strengthened the safety factor of the night travel Specification: Body material: ABSColor: BlackSize: about 124x40x37mm/4.88x1.57x1.46inGross weight: about 180g Package Includes: 1 set Bike Tail Light