Nothing livens up a party quite like declassified Cold War technology.
Originally developed by the U.S. military for underwater sonar devices, the
SoundBug will turn any hard, smooth surface into a speaker. A pair of the
devices on separate surfaces will produce the effect in stereo.
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A little smaller than a computer mouse, the SoundBug adheres via a suction
cup to your speaker of choice, for instance a window. It then plugs into a
standard 3.5mm jack on your boombox, to produce sound up to 75 dbm. Not loud
enough to raise the roof, but still respectable.
The device uses waves of magnetic force and a naturally-occuring crystalized
form of iron called Terfenol-D to make noise. As the electromagnetic signal from
your boombox arrives, it is boosted by the Soundbug's internal power (three AAA
batteries), and fed to the Terfenol-D strip which vibrates in time to the music.
That energy is transferred to the surface the SoundBug is attached to, and
voila, a speaker you can see through.
Look for even smaller versions of the device for use with a laptop to be
released in the next year.
-- Robert Myers
http://www.soundbug-us.com