This is Darth Vader's hoover...
It is really rather good - it makes a StarWars sort of sound too as it whines and dines on the dirt.
The dust cap is nicely booby-trapped so that when you click on the button to open it and try to lift the flap off at the top, you discover that the flap is actually at the bottom and all the gunge inside has now fallen out onto your foot!
Unless, of course, you have some Yedi foreknowledge and empty it outside in the blustery wind - in this case the gunge gets blown all over you.
In the review I read one person complained that it didn't work very well - I find that totally undustified.