This is not the gold card you would get swiped after dinner. Instead you would plug in earphones and load up 2 GB of songs to its onboard memory. The little one also packs in a speaker, it charges via USB and lasts 15 hours on a full charge. No display and fancy features here. The Strapya Credit card player is available in Japan for 2480 Yen ($ 28).

[Strapya]