This is the Roomba 660 specially designed to clean carpets and floors while circumventing the pets’ food and water bowls. Exclusively from Hammacher Schlemmer, Roomba comes with a virtual barrier that sets up near pet bowls and creates a 20"-diameter circle through which Roomba will not pass, preventing the robotic vacuum from bumping and spilling water and pet food. Made by iRobot, developers of tactical reconnaissance robots for the U.S. military, Roomba 660 has dual, counter-rotating brushes that reach deep into carpet fibers and quickly remove pet hair and dander. Roomba analyzes the dimensions of a room, determines the optimal cleaning path, and navigates autonomously to clean the floor. Integrated sensors detect areas of high dirt concentration, prompting Roomba to spend more time cleaning these locations. The cleaning head automatically adjusts to accommodate carpets or hard floors and dual air filters ensure only clean air is recycled. It can be scheduled to automatically clean up to seven times per week or prompted to spot clean. Virtual barrier requires two C batteries. Only available for delivery in the U.S. and Canada. 13 1/2" Diam. x 3 3/4" H. (8 lbs.)