Underwater MP3 player
http://www.oceanicworldwide.com/2004/p_mp3player.html21st of June 2004
An MP3 player you can use under when swimming and diving. I don't understand how the headphones work but I bet you must loose some of the sound quality.
This has a far reaching implication on our lives. Diving is typical for being soundless. That's why you need the body language that divers have worked out. Now, this simple technology marks an end to that. The price: $649.95 (~£350)