Product Name: [Domestic Genuine Product] Robot Vacuum Cleaner "Roomba" Model Number: 600 Series I wanted to try a robot vacuum cleaner, and a friend gave me one they weren't using anymore. I used it about 5 or 6 times, and then I bought the latest model, so I'm putting this one up for sale. As shown in the photos, the edge cleaning brush is partially damaged, and there are some scratches from bumping into things. Please understand that this is a used item before purchasing. [Good Points] ・It picks up more dust than I expected. I usually use a Dyson stick vacuum, but its suction power has been declining. When I ran the Roomba in that situation, the dust collection case had quite a bit of dust in it. ・It goes under sofas and furniture where it's difficult for me to vacuum, so it can clean areas I don't usually vacuum. [Bad Points] ・You need to tidy up the floor beforehand. ・You don't know where it's cleaned. (It moves forward and changes direction after bumping into obstacles, so you don't know where it's cleaned.) ・Because of the above, it bumps into various things. ・It's difficult to clean a specific spot. (There is a spot button, which seems to clean a specific area intensively.) [Impressions] ・It runs for about an hour after you press the button and sucks up dust. I felt that if I used it by pressing the button when I leave for work, I could save time because the cleaning would be done while I'm out. I felt the effectiveness of the robot vacuum cleaner, and as a result, I decided to buy the latest robot vacuum cleaner. The latest models have features that I thought would be convenient, such as scanning the layout of the room with a smartphone app, specifying the rooms to be cleaned, checking where the vacuum cleaner has cleaned, whether to do wet mopping, giving cleaning instructions from outside the home, and timer reservations. It was a bit expensive, but I'm satisfied because I feel that the quality of life has improved. This one doesn't have those features, but I recommend it to those who want to try out what a robot vacuum cleaner is like before buying an expensive, latest model. ■Automatic Charging When cleaning is complete or the battery level is low, it automatically returns to the home base. ◽️Body Size (Height x Width x Depth) Height 92 x Maximum Width 340mm Body Weight: Approximately 3.6kg Charging Time: Approximately 3 hours Operating Time: Up to 60 minutes