I am the second owner. I purchased this beautiful item with only 5 hours of operating time. I am selling it because my child has become afraid of the cleaning robot and I can no longer use it. I will include one unopened replacement filter, two virtual walls, two replacement brushes, and a charger. It can be linked with an app, but I was only operating it using the switch on the main unit. I was using it about once a week without any problems until a month ago, but it has been stored at home for the past month and has not been used. This is a sale of the item as is, so please purchase only if you understand this.