3 Stage Cleaning system loosens, lifts, & suctions dirt, dust, & hair from hard floors & carpetDual Multi Surface Brushes work together to grab dust, dirt, & large debris.Patented Dirt Detect™ sensors alert Roomba to work harder on concentrated areas of dirt.Full suite of sensors intelligently navigate the robot under & around objects & under furniture.Edge Sweeping Brush is specially designed to sweep debris away from edges & corners.Connect & schedule from anywhere. Use Alexa or Google Assistant voice commands to control cleaning.Runs for up to 90 minutes before automatically docking & recharging.Roomba® Essentials Smart Navigation, Auto Adjust Cleaning Head, Works on Carpets & Hard Floors