Features1This bicycle warning taillight adopts high bright SMD patch lamp beads with high brightness, which effectively reminds the vehicles passing behind. 2The warning taillight is made of high light transmittance material, which has strong penetrability and is firm and anti drop. 3Using a high luminous flux wick, the brightness is greatly improved, and the warning is farther and clearer. 4The circular warning taillight is small and exquisite in shape, easy to carry, and easy to install and disassemble. 5With USB charging port, fast charging anytime, anywhere, with silicone seal, waterproof and dustproof.SpecificationItem Type: Bike Rear LightMaterial: ABSProduct Color: WhiteBattery Type: Lithium Battery (Delivered with Built-in Battery)Battery Capacity: 350mA (Built-In Battery)Charging Method: USB ChargingProduct Use: Taillights, Helmets, Backpack Warning LightsLighting Mode: Strobe Flash, Fast Flash, Breathing Light, Marquee 1, Marquee 2, Long BrightPackage List1 x Tail Light1 x Strap1 x Date Cable