The DNG 2300 3-channel white noise generator protects against listening devices that can not be discovered by the usual counter-surveillance methods.
We know that sound has the ability to pass through walls and windows, as well as materials that do not pop to mind immediately, like water. It also passes through ventilation shafts, cavities, and voids. That makes it possible to listen to conversations that are taking place in closed rooms, with highly sensitive microphones, laser systems, or even conventional microphones.
The DNG-2300 white noise generator and its transducers and speakers, create in a way, a sound curtain around the space using a white noise that can not be filtered. In that way, the sound (a confidential conversation for example) can not leave the room, and thus can not be eavesdropped upon with a stethoscope or laser microphone.
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