Powerful 350 lumen flashes to be seen day and night Unique 2-button design lets you adjust the speed of each flash mode and the brightness of the Steady mode Dual LED optics throws a long range, extra wide beam Daytime visible flashes make you stand out on busy streets 7 lighting modes for day and night use (Steady, Zoom, SteadyPulse, Bzzz Flash, Triple Flash, DayLightning� Flash, Random Flash) Hard seat post mount and seat stay mount securely attaches onto seat posts and seat stays Light mode memory saves the mode you`re in before the light is turned off USB rechargeable with 2 to 200 hours of run time and 3 hours fast charging Low battery indicator alerts you when a charge is needed Designed, engineered, and assembled in the USA Black 7 Rear Seatpost USB 350UPC/EAN/GTIN: 745025096255