Covert Listening Book

[youtube http://www.youtube.com/watch?v=_auRoqrbnUA?wmode=opaque&w=620&h=349] Connect a shirt pocket “amplified listener” hearing aid with an in-car FM transmitter, and you’ve got a wireless bug. Tuck them inside a hollowed-out book with the mic concealed by the dust cover, and you’ve got a covert listening device that you can leave lying around or on... Read more »

Easy Boombox

Many earbuds can play at high volume without distortion. Use them to drive paper cups, and the sound is surprisingly good. I first put this together when I really needed to listen to some jams at work. Put the ghetto back into the blaster! Read more »

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