Listen Through Wall Device

This two power transducers listen through wall device is the most updated one in similar products nowadays, which can give listener the clearest audio information they are going to know. This is a special amplifier that will pick up the slightest noise through solid objects like a wall, so you can listen to what is happening on the other side. 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 to enable police, prison and so on.

Power of Signal: 1mW
Frequency of Swing: @1KHz,6 Db (attenuation)
@300Hz,15 Db
Channel Attenuation Separation: >40 Db
Stereo Balance Control: ±10 Db
Non-linear Harmonic Distortion Coefficient:  >0.5%
Range of Amplifier Dynamic:  >60 Db
Power Wastage (50% Volume): 25mA
Battery: 4×1.5V  AA battery
External (PSU N/A): 9~12V  @mA supply power
Headset: 0.6Watt, 300 Ohms
Dimension (mm): 128×99×23
Weight: About 0.5kg



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