This is the advanced robotic sweeper with two heavy-duty brushes that rotate 1,000 times per minute to pick up woodchips, leaves, nuts, bolts, dirt, and more from indoor or outdoor surfaces. Ideal for use in garages and basements and on patios and decks, the unit navigates across surfaces autonomously, sweeping debris toward its high capacity dustbin that is 20% larger than previous models. Made by iRobot, a company founded by roboticists and renowned for its tactical robots used in U.S. military reconnaissance missions, the robotic sweeper has a sensor that redirects it before encountering workbenches, cars, stairs, or ledges. The device begins to clean at the touch of a button and its rugged rubber wheels and swiveling front caster enable optimal cleaning on concrete, wood, or tile floors. Includes AC charger. 3" H x 13" Diam. (6 1/2 lbs.)