High Sensitivity Wall Listening Device
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Dimensional Sound Wall Listening Device Description This multi-function Wall Listening Device is the most updated one in similar products nowadays, which can give listener the clearest audio information they are going to know. The contact microphone is a ceramic pin specially developed for converting vibration into audible noise. It has two powerful transducers together comprise an exceptional monitoring device. It is widely used in police, prison and intelligence department.
Features ● Super Detection sensitivity. ● The threshold frequency,gain of the amplifier and microphone are adjustable. ● The gain of the amplifier can be infinitely adjusted. ● People can monitor with channel 1, channel 2 separately or simultaneously.
Technical Parameters
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