Offered as a defective item. I was keeping it unused because the new kitten I got would play with it. I thought it might be okay as it grew, and I tried it out for the first time in a year, but it still played with it and I couldn't use it. Perhaps because it had been left unused, its behavior was strange, so I ask that those who can fix it or who need it for parts purchase it. ・Sometimes it cleans normally, and sometimes it spins around or bumps strongly and can't clean properly. ・When returning to charge, it approaches the charger normally, but when it gets close, it just keeps spinning around. ・Sometimes it won't start cleaning at all unless you touch it and move it a little. A new filter and side brushes are also included. Please check the last photo for the usage condition. When I last used it, I was using it with the main brush removed, so I think the usage condition is less than in this photo (today's data). This is offered as a defective item, so please understand that no claims or returns are accepted. Lightly cleaned. The Ecovacs box is double-boxed, and the outer box has been chewed by a cat, so please be aware of this. The box containing the main unit is still in good condition.