This Listen via the Wall Device could provide vital evidence for any private detective and private investigator as it can pick up even minute sounds, via a unique amplifier, via walls, windows or partitions. Attached to the amplifier is really a extremely sensitive ceramic microphone which is developed to choose up vibrations that are converted into a voltage which can be then be made into audible sound. The amplifier has an adjustment to allow 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, up to 300mm thick, after which listen in by way of stereo headphones. All of the evidence could be recorded by connecting a recording device, like 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 useful piece of kit for each and every private detective and private investigator.
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