The iRobot Roomba i7 Robot Vacuum Cleaner uses a premium 3-Stage Cleaning System with Dual Multi-Surface Rubber Brushes and 10x suction to clean different floor surfaces throughout your home. Built-in Wi-Fi 3-stage cleaning system Dual multi-surface rubber brushes Power-lifting suction delivers 10x the air power Imprint Smart Mapping technology 90-minute run time iAdapt 3.0 Navigation with vSLAM technology allows mapping of the surroundings Works with Amazon Alexa and Google Assistant Cleans what you see, filters what you don’t Ideal for homes with pets, the Premium 3-stage Cleaning System cleans the dirt and pet hair you see and allergens and dust you don’t. High-efficiency Filter captures 99% of cat and dog allergens. Dual brushes Each brush is uniquely designed with rubber treads that stay in constant contact with different floor surfaces from hard floors to carpets, adjusting and flexing to get everything from small particles such as dust, dirt and hair to large debris. Stays in bounds Keep Out Zones allow you to clean with added control, actively avoiding the areas you tell your robot not to go, such as around pet bowls and toys. Once you set a zone, it will remain that way for all future cleaning jobs. Smart charge and resume The Roomba i7 runs continuously for up to 90 minutes, then automatically recharges and resumes cleaning to complete the entire job. When Roomba i7 has a low battery, the robot intelligently recharges only for the amount of time needed to continue cleaning and get the job done.