The Game Boy: Amazing musical gems from Tetris and Super Mario aside, you could also use various cartridges to make and listen to your own bleepy bloopy music. These days it can be turned into a controller to make your very own chip tunes.
The Nokia 3310: That's not a music player, that's a phone you say? Wrong. This brilliant piece of gold from Nokia started the trend for phones that play music with a brilliant ring tone generator. It let you make your favourite tracks or become your very own lo-res Mozart.
The USB MP3 Player: A great concept but awful excecution. These cheap as chips USB's only allowed the user to carry around ten songs. The result? They were destroyed by the iPod which held days of music. You forget these existed for a reason - they suck.
The Sound Burger: This mind blowingly silly format was actually bought by punters in the 80s. Ignoring the fact you have to carry that around in your hand, the fact it's called a sound burger and that it would require changing constantly, it's a pretty awesome piece of wtf engineering.
The Vintage Boombox: If you're up for a little bit of break dancing to Elvis at the old folks home, then this is for you. Just don't expect to carry it around as the needle will skip around everywhere.
The Boombox: Still around today but mainly for sheer retro factor, this is the big daddy of the pocket radio, able to pump out some serious noise and provide a variety of audio options. Also if you walk around with this on your shoulder you are a bonafide badass (or maybe a bit of a dick - ED)
Pocket Radio: Still knocking around today in the DAB format, this was perhaps the most reliable portable music gadget. You could find these in your offices all the way to your greasy spoon cafes, basically anywhere that wasn't bothered about buying a proper soundsystem.
The Minidisc Player: Ushered in and hotly tipped as the "future" (it wasn't), it was hideously overpriced and only owned by your smug mate with too much money. Also who needs the hassle of transferring all your CDs to the minidisc format? It was gone as soon as it came.
Discman: This improvement in audio quality also ushered in an era of seriously crap ergonomics. A generation of kids walked round with this behemoth rammed in their back pockets, oh and good luck walking along as the anti-skip functionality only ever worked for about five seconds.
Talkboy: As modeled by Macaulay Culkin in Home Alone 2, this piece of kit was a must have for every rascal in the 90s. It was essentially a Walkman with a microphone and recording functionality tapped on. You could also slow or speed up the recordings to create some (at the time) hilarious recordings.
The Walkman: The grand daddy of all portable music devices is an absolute masterpiece. Perfect for your mixtapes, it was durable, there no skipping when you go for a jog and dead easy to use. The only drawback was those terrible, terrible metal headphones that caught in your hair.