Bright and visible -- The bicycle tail light consists of 32 high-quality LEDs, providing you with bright light indication and wide visual range at an angle. The light can be seen clearly even from a distance, keeping you in safety at night. 5 light mode options -- The bicycle tail light has a left turn signal, a right turn signal and a red light always on, a flashing red light or all flashing. You can choose different lighting modes according to the situation to meet your many needs. 900mAh Rechargeable Battery & Waterproof - Built-in 900mAh rechargeable battery can be used for charging your taillight via USB. This bicycle rear light is waterproof and can be used even in rainy weather for your best protection. (should not be immersed in water) Easy to install and use -- the tail light is very easy to install and you can mount it in the right place quickly and easily. The lights are factory matched to the remote control, so you can use it immediately after installation. The three buttons on the remote control correspond to the left turn signal, right turn signal and light warning light. Wireless remote control -- the remote control is also quick to set place and you can mount it wherever you want. By pressing the button on the remote control, the tail light turns on quickly. Easy to install You can quickly mount the indicator on the saddle post of your bicycle or motorcycle, or you can quickly attach the remote control to the handlebars, wherever you want. Waterproof This light rear bike is waterproof and is perfect for outdoor riding in all weathers. You don't have to worry about the rain affecting it. Rechargeable battery The taillight can be quickly recharged via USB without you having to to replace the battery. The high-capacity 900 mAh battery ensures long battery life for the taillight.