This bicycle tail light comes with a remote control for easy operation. The remote control can conveniently control the turning signals, ensuring your safety during night rides. The tail light is bright and highly visible, making you noticeable to other road users.Features:When cycling, you can use the remote control to turn on the corresponding directional light according to the road conditions and steering needs.USB rechargeable design, you don't need to worry its battery.Interface protectives cover design, dust-proof and waterproof.Waterproof for daily use, can also be used for cycling on rainy days.Easy to install and remove.The three light modes can be switched according to needs.Specifications:Color: black, silver (optional)Material: ABSLight battery: 3.7V, 400mAhRemote battery: 1 * CR2032, 3V, 210mAhItem size: 96 * 32 * 25mm / 3.8 * 1.3 * 1.0inItem weight: 43g / 1.5ouncePackage size: 100 * 57 * 50mm / 3.9 * 2.2 * 2.0inPackage weight: 106g / 3.7ouncePacking List:1 * Bike Light1 * Remote Controller1 * USB Cable