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This Listen through the Wall Device could present crucial evidence for any private detective and private investigator as it can choose up even minute sounds, through a special amplifier, by way of walls, windows or partitions. Attached to the amplifier can be a highly sensitive ceramic microphone which is developed to choose up vibrations which are converted into a voltage which could be then be created into audible sound. The amplifier has an adjustment to enable the sounds to be heard clearly and in the necessary volume.
Private detectives and private investigators can just hold the device to the surface in question, up to 300mm thick, and then listen in by way of stereo headphones. All of the evidence could be recorded by connecting a recording device, like an MP3 player, into an audio output socket. A 9 volt battery powers the listen by means of the wall device and will give private detectives and private investigators up to 24 hours of use. This really is surely a very valuable piece of kit for each and every private detective and private investigator.
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