Feature 1、【Ultra Bright Bike Turn Signals】: 39 high light LED lamp beads, up to 100 lumen output, bright enough to be seen from 150 feet away in foggy/rainy day or even in dark night. 2、 【Wireless Remote Control】: Install a remote control on the bike head, easily control the bike tail light to send signals in different modes by the three easy to use buttons on the wireless controller. 3、 【IPX4 Waterproof】: IPX4 waterproof level can be used in small to moderate rain in the temperature of in -4~140°F -- your best partner for outdoor biking. 4、 【USB Rechargeable】: Built-in large-capacity rechargeable battery, can work in flashing mode for up to 10 hours after being fully charged, durable and environmentally friendly. Can be adapted to a variety of charging methods, such as laptop computers, car chargers, mobile phone chargers, power banks, etc. 5、 【Wide Application】 Suitable for all kinds of bicycles: mountain bike, road-bike, off-road bike, racing bike, etc. Easy to control the right/left turn signals, emergency light, warning light, securing your safety when riding in traffic. The robust design alsintegrates exclusive amber side lighting which substantially increases driver awareness of cyclists at intersections, an essential feature for the urban commuter. Made from 100 Lumen CREE LED light 39 super brightness LED lamp bead Has 5 different lighting modes. Can be recharged via an USB port 3 hours charge to full 3.7V 500mAh can work 4-5 hours. Can be mounted on helmets, bike handlebars, scooter, wheelchair and more. Specification: Material: plastic Color: red main light, yellow turn signal Size: 12.2 * 4cm Lamp beads: 4 blue SMD / 5 red SMD / 30 yellow SMD Brightness: red light 10-15LM Battery: built-in 500mAh rechargeable battery in the lamp, button battery in the remote control Power supply: USB charging (included) Life time: 4-5h Features: Turn on the main switch, the indicator lights up; Left switch, flashing left turn signal; Right switch, flashing right turn signal; Turn on the first gear of the LED: the red light is on; Turn on LED second gear: red and blue flashing; Press the left and right buttons simultaneously for 3 seconds to trigger the double-hop function; Package List 1 * Bike light 1 * Remote control 1 * USB cable 2 * Install accessories Note Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement.