iRobot's Roomba i7 vacuum cleaner uses a premium three stage cleaning system with dual multi-surface rubber brushes to clean different floor surfaces throughout your home. It learns, maps and adapts to each room, using Imprint Smart Mapping technology, letting you control which rooms are cleaned and when. Cleaning power is always at your fingertips with the iRobot HOME App—you can control when, where, and how your robot cleans from your smart phone. You can also use Alexa or Google Assistant for hands-free control.