It's very convenient because of its good suction power and long operating time! ✳️ Spare filters, paper bags, brushes, etc. are also included! - Model: Roomba j8+ - Features: With automatic dirt disposal function I purchased it in the US and used it for just under a year, but there are no operational problems. (Operation confirmed in Japan) Fine dust that cannot be completely removed is caught in the dust collection part. Also, there are some minor scratches and signs of use. ✳️ Please consider purchasing with the understanding that this is an overseas product.