Huh? What? I Can’t Hear You!

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CAN YOU SPEAK UP A BIT?! I CAN’T HEAR YOU! NO, NOT AT ALL!

Developed by the Dutch Army during World War I and II, these Acoustic Listening Devices were expected to be used as part of their air defense system. And they were undoubtedly a rousing success.

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About Andrew

Hey Folks! Myself Andrew Emerson I'm from Houston. I'm a blogger and writer who writes about Technology, Arts & Design, Gadgets, Movies, and Gaming etc. Hope you join me in this journey and make it a lot of fun.

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