Take a look at this design concept of a CD-playing athletic shoe. (We had considered titling this post “BoomShoe” but then thought again.) It comes with everything you need to play CD’s built-in, including a compact disc player, speaker, tweeters and a small knob for volume. It even has some controls for play, stop, forward and back embedded into the side.
The design picture is pretty cool but I would bet you would have some real “skipping” problems with this one. Throw in some Flash memory and a small LCD screen and I think we would really have something.