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

Private detectives and private investigators can basically hold the device to the surface in question, as much as 300mm thick, after which listen in through stereo headphones. All 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 via the wall device and will give private detectives and private investigators as much as 24 hours of use. This is surely a very helpful piece of kit for each and every private detective and private investigator.

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