“Keep very good working after use a month,worth to come back to leave my option.first,the very important is this is very quiet!you can’t even notice that when you doing something .second，why I recommend is it is very easy to set up and control even your parents can East to use.you can use your smart phone or remote.Then I have a lot of hair on the floor what it is clean very well and not stop .it is charge by it self if out of battery and free our hand.by the way it is very funny like a little robot which kids love it.It is a very cute ,smart and helpful robot vacuum!”