Roomba Self-Navigating Sweeper-Vacuum Navigates Intelligently. It turns in a spiral pattern, but when its non-marring bumper encounters an obstacle, it adjusts until it finds a clear path. A sensor detects drop-offs like stairs, and it turns to avoid them. Available from 154-year-old Hammacher Schlemmer, known for introducing products that have revolutionized the American household-like the first Pop-Up Toaster and first Electric Broom introduced in 1948. Just weighs under 7 pounds, 3 1/2 " high, completely portable and priced at $199.95
