iRobot Roomba 614 Robot Vacuum Cleaner, Self-Charging, Good for Pet Hair, Carpets, & Hard Floor Surfaces 3-Stage Cleaning System and Dual Multi-Surface Brushes pick up everything from small particles to large debris Patented Dirt Detect sensors alert Roomba to work harder on concentrated areas of dirt, such as high-traffic zones of your home Full suite of intelligent sensors guide the robot under and around furniture to help thoroughly clean your floors Edge-Sweeping Brush is specially designed at a 27-degree angle to sweep debris away from edges and corners Runs for up to 90 minutes before automatically docking and recharging Featuring these other Roomba robot essentials  Auto-Adjust Cleaning Head, Works on Carpets and Hard Floors