iRobot Roomba i7+ A robot vacuum cleaner that employs the "AeroForce 3-Stage Cleaning System." Compared to previous models, the suction power has increased tenfold, removing fine dust and pet hair from carpets. With Imprint Smart Mapping, it learns and memorizes the layout of your rooms, selecting the optimal cleaning pattern. It intelligently determines routes, such as from the living room to the kitchen. Used for about a year and a half. I will clean it as much as possible with alcohol, but there may be some remaining dirt on the dust box, etc., due to amateur cleaning. Please understand this. Also, the box and instruction manual are not included. It can be operated from anywhere with an app that also supports smart speakers. In addition to schedule management, you can check the cleaning status and history, and easily view maintenance instructions in videos. -------------------------------------- Maximum operating time/continuous use time Up to 75 minutes Charging time 3 hours Functions Step-over function available Cleaning area setting function available Automatic charging (automatic return) available Automatic resume available Wi-Fi compatible ○ Smart speaker support Google Assistant Amazon Alexa App integration ○