Sunnice&reg; Brand New Bicycle Light 3 Modes 5 LED Rechargeable Water-Resistant Bike Safety Tail Light with Parallel Beam LED light pattern: Continuously shining - all bulbs flashing - single bulb rotating flash - off. Double button design makes the light easy to operate. Laser light pattern: Continuously shining - flashing - off. 180-degree adjustable bracket, firm, durable, and easy to install. Rechargeable: Built-in Li-ion battery that can be recharged by USB. (USB charging cable included; AC charger not included.)