• Rear bicycle light: Compact and powerful rear bike lights can ensure the safety of people and others, and ensure that other road users can see you and your bicycle.
• 4 lighting mode options: 4 lighting modes can meet the best visibility in day and night. Including Light mode: alternate slow flash, full light flash, alternate fast flash, steady on, off.
• USB quick rechargeable: The built-in USB can be easily charged via the micro USB cable (included).
• Easy to install: It can be easily loosened and fixed without any tools, 360 degrees can be adjusted. It can also fit various sizes of seatposts, handlebars, seat risers, backpacks, helmets and telescopic chairs according to your preferences.
• Waterproof, even in snow and rain can prevent water splashing from any angle.

As You Choose 1 Piece Bike TailLight + 1 Piece USB Cable + 1 Piece Clasp 1 Piece Bike TailLight + 1 Piece USB Cable + 1 Piece Bandage