Ultra-bright Led Bike Light - Built-in 36 high-end LED lights and comes with 2 colorful tire lights, and the brightness up to 85 , this bike rear tail light with wireless remote control is bright enough to be seen from 150ft in foggy/rainy day or even in dark night, keeping your safe. Wireless Remote Control - Installed it on the handlebar, easy to switch the lighting modes of the bike rear light by press the four buttons on the controller. six lighting modes: Constant Light / Flash Light / Quick Flashing Light / Turn Left / Turn Right / Brake Light, more . Easy Installation - The silicone mount straps are designed with 3 openings that can fit for 12-32 mm post, handlebar, riser and to keep the lights and , can be release and no tools required. this rear tail light is easy to use. Usb Rechargeable - Built-in a 500mAh rechargeable battery, this bike rear tail light will keep running for 4 hours under the flashing light mode after fully . The remote controller equipped with a replaceable lithium battery Mutifunction Bike Light - With the IPX4 waterproof, the cycling tail light can be used on rainy day and applied to many outdoor activity, such as cycling, camping and hiking, which is versatile, depending on your needs. colour: black Material: ABS+silicone Size: Turn signal size: 8.5x2.2cm, remote control size: 5.0x4.5cm Package Contents: 1 x bike light 1 x controller 2 x fix rubber ring 1 x mount bracket for remote control 1 x turn signal holder 1 x usb cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.