Include: 1 x Bicycle Tail Light, 1 x Strap, 1 x USB Cable, IPX2 waterproofShell Material: Waterproof ABS,Charging time: about 2 hoursWorking Time: 3-6 hours according to different using modeEasy to install, suitable for many sizes of handlebars or seatpost5 lighting modes style: Slow Flasht, Flash, Flashing, Warning lights, 100% lighting, 50% lighting. Package Includes: 1 Piece Bicycle Tail Light 1 Piece Strap 1 Piece USB Cable Note: Please allow slightly difference due to manua l measurement.Color may be slightly different since different monitor. Thanks Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!