Soundless Sound?

[TheDragoon]

Quite some time ago, there was a headphones type thing that looked like a thick scarf.  To my best recollection, it functioned by vibrating against the collarbone which passed through the bones to be heard by the ears.  It seems like they had a name that somehow fit into the walkman naming convention.
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That's true, I remember hearing about that, too. Maybe I'm getting my mechanisms of the sound transfer mixed up. It's still cool, though. :)