What's argos?
There's actually been 4 different versions of the shuffle.
1G - long white stick, about 3" long with the standard 4-way clicker plus center button. Power switch doubled as the shuffle switch.
2G - much much smaller shuffle with a metallic body, available in a rainbow of colors. Same switches as 1G. Another major change (followed through to 3G and 4G) was that USB connection was through the headphone jack. Also introduce the clip that's now in use for all shuffles and nanos.
3G - changed to remove the physical control buttons from the shuffle and onto the headphones. Also, the shape changed to be thinner, but longer. I think the colors were dropped and only chrome and black-chrome were available.
4G - went back to the 2G design, but reduced the size even more. Colors were brought back.
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