This bike safety tail light features with 5 high light LED, 7 flashing modes, 2 laser launcher. It provides a 260deg;wide visibility. This tail light also features water resistance. It is an ideal item to ensure your safetynbsp;when you are riding a bike at night or in bad weather.Features:5 super bright LED light7 Flashing Modes: Long light, Strobe light, Slowly strobe, Twice cyclically strobe back and forth, fast cyclic strobe and slowly strobe2 laser light: Long light and StrobeSimultaneously handle super bright LED and laser beamTool free installation260deg;wide visibilityInput power: 100mWWorking Time: 9-36 hoursSuitable for the seat post: 20-36mmPowered by 2 X AAA 1.5V LR03 batteries (included)Color：Red + BlackMaterial: Plastic Note: Avoid exposure Laser directly to eye.Package Included: 1 * Laser Tail Light 1 * Mount Ring 2 * Anti-skidding Piece 2 * AAA LR03 Battery,