Belkin MP3 Player to cassette player adapter (Wealdstone HA3)

I was given this in with some DVDs and it is a piece of technology from the days when MP3 players were new and cars had radio cassette players. It is a boxed Belkin adapter it has a mini stereo jack which goes in the output of your music player and is connected to a dummy cassette which fits into a stereo cassette player and converts MP3 format into the magnetic pattern which a cassette would contain. I no longer have a cassette player so it is no use to me and will have to go in the bin if nobody wants it.