This is a Roomba i5. I purchased it in the US around July 2024 and used it until March. It's a US model, so the voice guidance is in English, but the app supports Japanese, so it should be practical to use. One of the edge cleaning brushes is damaged. You can still use it as is, but it would be best to replace it with a genuine or third-party brush. I have some extra third-party dust cut filters, which I will include. It has been reset to factory settings. I have cleaned it as thoroughly as possible. No box, but the instruction manual is included.