The Roomba 671 robot vacuum is on sale at Amazon — save $120 | Mashable
iRobot® Roomba® 676 Robot Vacuum-Wi-Fi Connectivity, Personalized Cleaning Recommendations, Works with Google, Good for Pet Hair, Carpets, Hard Floors, Self-Charging - Walmart.com
iRobot Roomba 671 Robot Vacuum: Should I buy it? - YouTube