3-Stage Cleaning System and Dual Multi-Surface Brushes pick up everything from small particles to large debrisPatented Dirt Detect sensors alert Roomba to work harder on concentrated areas of dirt, such as high-traffic zones of your homeFull suite of intelligent sensors guide the robot under and around furniture to help thoroughly clean your floorsEdge-Sweeping Brush is specially designed at a 27-degree angle to sweep debris away from edges and cornersClean and schedule from anywhere with the iRobot HOME App; compatible with Amazon Alexa and the Google AssistantRuns for up to 90 minutes before automatically docking and rechargingFeaturing these other Roomba robot essentials - Wi-Fi Connectivity, Auto-Adjust Cleaning Head, Works on Carpets and Hard Floors