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Is their a far range listening device if so what is it?

Science & Mathematics by Anonymous 2018-06-21 05:33:40

Social Science

Is their a far range listening device if so what is it?

1 answer

  • Anonymous

    Electronically it is a "gun microphone" (like those long mics in fluffy covers which you see in news reports) or a microphone placed at the focus of a parabolic reflector.

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