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