The 3-Stage Cleaning System uses Dual Multi-Surface Brushes, a specially designed Edge-Sweeping Brush, and vacuum suction to attack everything from small particles to large debris on your carpets and hard floors. Powered by a suite of intelligent sensors, the Roomba® robot vacuum makes more than 60 decisions per second to adapt to your home and help thoroughly clean your floors. Dirt Detect™ Sensors alert the Roomba® robot vacuum to work harder on concentrated areas of dirt such as high traffic zones of your home. 694 High performance, Wi-Fi® connected.