The Shark ION Robot is designed with a Tri-Brush System, combining three brush types to handle dirt and debris on all surfaces, corners, and edges. Control with the Shark-Clean app or voice control with Alexa or Google Assistant. Three brush types. One powerful clean: Tri-Brush System combines side brushes, channel brushes, and a multi-surface brushroll to handle debris on all surfaces Completely integrated in your home: Shark ION Robot® senses ledges and stairs, avoids damaging furniture and walls, and maneuvers around potential stuck situations, truly knowing your home Clean from your phone: The Shark-Clean™ app lets you start and stop cleaning and schedule your robot to clean whenever you want Easy voice control: use Amazon Alexa™ or Google Assistant™ to easily make the robot clean at your command in your connected home Up to 120-minute runtime: Whole-home, floor-to-carpet cleaning for up to 2 hours Built, tested, and perfected: Shark puts robots through rigorous testing, performing thousands of hours of real-life use to deliver a reliable, ultra-powerful clean