Used Robot Roomba I7+ Wi-Fi Connected Robot Vacuum with Automatic Dirt Disposal (7550)Used comes as shown With the iRobot Roomba i7+ Wi Fi robot vacuum and Automatic Dirt Disposal, cleaning has never been easier. This multi surface vacuum goes from carpets to hard surfaces without missing a beat, eliminating dirt, dust, and debris. It uses smart mapping to learn the layout of your home and empties its own bin as needed so you don't have to lift a finger. iRobot Roomba i7+ Wi Fi Connected Robot Vacuum with Automatic Dirt Disposal (7550).