Black robot vacuum cleaner with automatic dust collection. Currently in working condition. It cleans when charged and the clean button is pressed. It returns to its dock automatically when finished. It seems you can use it more conveniently by downloading the app to your smartphone, but I haven't used it that way. As a functionality check, I have confirmed charging, cleaning, and returning to the home base. I haven't checked the other functions, so please understand that it is considered junk if there are any issues. One point of concern is that the small dustpan-like parts on the edge of the vacuum cleaner body are not rotating. They are supposed to rotate and collect dust, but they are not moving. - Type: Robot Vacuum Cleaner - Color: Black - Accessories: Charging Dock - Features: Automatic Dust Collection - Operation: Button-operated Thank you for viewing.