Hello,
I own a business that designs, manufactures, and markets underwater technology for such devices. Including MP3 and CD-Player systems with high fidelity audio. We have secured U.S. Patents for these technologies. I hope you write back so I may be able to provide you with what you are looking for.
thank you
Rany Polany
President
rpolany@desdiver.com
Diver Entertainment Systems Inc. http://desdiver.com