This plays the music from the 70s TV advert when you twist it open (that is a lie btw!). We bought this to clean a carpet in a corner which had housed an old freezer. It cleaned up a lot of dirt better than expected. The overpowering scent may not be to everyone's taste but it disappears after a few hours. Only useful for dirty areas such as toilets or bathroom etc. Just put it down for a few minutes and then vacuum it up. Brilliant !.