what is that vacume that vacumes and moves around on it's own?

do they work on carpet, and how much do they ussually go for?

Answers:
I think it is called roomba

Other answers:
It's called a ROOMBA - it was the first robot vacuum cleaner. There are now other brands of the same thing. Prices vary, and I believe they have to be "programmed" in terms of room size. INteresting to watch them work, at the very least.
It's called a ROOMBA - it was the first robot vacuum cleaner. There are now other brands of the same thing. Prices vary, and I believe they have to be "programmed" in terms of room size. INteresting to watch them work, at the very least.
That would be the Roomba I believe.
Target carries them, the ROOMBA. I think they're around $200. They now have one that cleans hard floors.
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