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This Listen by way of the Wall Device could supply important evidence for any private detective and private investigator as it can pick up even minute sounds, through a unique amplifier, via 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 may be then be produced into audible sound. The amplifier has an adjustment to allow the sounds to be heard clearly and in the necessary volume.
Private detectives and private investigators can basically hold the device to the surface in question, as much as 300mm thick, and then 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 through the wall device and will give private detectives and private investigators up to 24 hours of use. This really is surely a really beneficial piece of kit for every private detective and private investigator.
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