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 SharkClean 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. Note: Can only connect to 2.4GHz Wi-Fi networks Includes: (1) Shark ION Robot, (1) Charging dock, (2) Side Brushes, (1) Filter This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.