Technology
Voice Silencer on telephone lets you talk in secret

Lrg Silent Phone
You could probably making a bundle of cash making updated ones for cell phones, hehe – Popular Mechanics 1941 – Link.

Tagged

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone