Thank you for coming to our shop, I hope it is to your satisfaction Item Name: Tail Light Features: Waterproof, High Brightness, Wireless Remote Control Charging Mode: USB, Power Bank Battery: 700mAh (Included) Charging Time: About 2.5h Discharging Time: About 5.5h Brightness: 80lm Material : ABS Manual : no Size Details: Size: 9.6cm x 3.4cm x 2.15cm/3.78" x 1.34" x 0.85" (Approx.) Specifications: It brings a better warning effect for night cycling because it has high brightness lamp bead. What makes it easy to put in pocket for convenient carrying is the lightweight and compact design. Made of high quality ABS material, it is durable. 6 modes design allows you to switch the light as you like. It is convenient to use outdoors because it has multi charging methods. What allows you easily to control the function of tail light for extra safety while cycling is the wireless remote control design. It is suitable for bike. It is waterproof and not easy to damage by rain, but please ensure that the USB port is disabled when using. The length of the product is 9.6cm, the width is 3.4cm, and the thickness is 2.15cm. Kindly Remind: Due to light and display, there may be slight differences between the picture and the actual color of the product. The color is subject to the goods received. In addition, please allow slight size difference due to manual measurement. High quality, assured choice is guaranteed Package Includes: 1 x Tail Light 1 x Remote Control 1 x Charging Cable 2 x Tie Belts 2 x Buckles