Purchased 4 years ago. Due to battery life, I replaced it with another one, so this is for those who want to try using a Roomba. You can start cleaning from your smartphone by connecting to WiFi, but you can also start cleaning by pressing the power button on the main unit. There are no pets or smokers. The parts have been replaced once, so they can be used without any problems. The purchase price of the main unit was about 50,000 yen. Please note that the battery will be shipped without it. Currently, the genuine battery is about 10,000 yen and the compatible one is about 3,500 yen. I will clean it as much as possible before shipping, but please understand that it is used. iRobot Roomba equipped with a dual brush system. - Brand: iRobot - Model: Roomba - Accessories: Charging dock - Operation buttons: Clean button, Scan button - Brush structure: Dual brush system Thank you for viewing.