iRobot Brava 390 This is a robot vacuum cleaner for wet mopping and dry sweeping. It's quieter compared to a Roomba. I don't use it very often, but I replaced the battery once because it had deteriorated and the operating time had become shorter. I used it for a while, but the battery has deteriorated again, possibly because I didn't use it much. It works fine, but I think the battery needs to be replaced. I will include the accessories that are shown in the photos. I have cleaned it, but there may still be some dust or debris. Please refrain from purchasing if you are overly concerned about minor details.