Often though, the subject is well aware of the risk he is running in his very own home, and takes his protection measures, making any covert operation to plant bugs an extremely risky job. On the contrary, when in open spaces, such as a park for example, he might be more relaxed, and talk about private information which would be vital for an investigation.
Thanks to their extreme sensitivity and the possibility of being operated both by cable and by AAA battery, these directional microphones are suitable for being used both indoors and outdoors. For example, to listen to the conversations of a secret couple hidden in a park, it will be enough to sit inside a car parked behind a fence, then point the shotgun microphone in the right direction, and you will be able to pick up the conversations with extreme clarity.
A directional microphone can also be connected to a digital recorder, to store the information which can later be used before a court of law. In the same fashion, to gather evidence against a local pusher, one can hide inside a nearby apartment, and conceal the parabolic microphone among clothes hanging on a line, in order to be able to gather evidence without raising suspicions.
This kind of microphones is suitable not only for law enforcement and detectives gathering evidence, but also for professional use in the show business, for example while shooting a movie or a TV transmission in open spaces, or indoors in a theatre. There are endless possibilities for usage of a directional microphone, your fantasy is the only limit! Of course, there are several models available on the market, each one with different characteristics of range and power.
http://www.articlesbase.com/electronics-articles/directional-microphones-how-they-can-help-you-1029753.html
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