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This Listen via the Wall Device could offer vital evidence for any private detective and private investigator as it can choose up even minute sounds, by way of a unique amplifier, via walls, windows or partitions. Attached to the amplifier is actually a highly 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 enable the sounds to be heard clearly and in the required volume.
Private detectives and private investigators can merely hold the device to the surface in question, up to 300mm thick, after which listen in by way of stereo headphones. All of the evidence may 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 really is surely a very valuable piece of kit for each private detective and private investigator.
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