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This Listen through the Wall Device could offer vital evidence for any private detective and private investigator as it can pick up even minute sounds, through a unique amplifier, by means of walls, windows or partitions. Attached to the amplifier is actually a extremely sensitive ceramic microphone which is developed to pick up vibrations which are converted into a voltage which can be then be produced into audible sound. The amplifier has an adjustment to enable the sounds to be heard clearly and in the required volume.

Private detectives and private investigators can just hold the device to the surface in question, as much as 300mm thick, after which listen in by way of stereo headphones. All the evidence can be recorded by connecting a recording device, for example an MP3 player, into an audio output socket. A 9 volt battery powers the listen via the wall device and will give private detectives and private investigators as much as 24 hours of use. This is surely a very valuable piece of kit for every private detective and private investigator.

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