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Total 68193 products for long range listening device Manufacture & Suppliers

Lightweight Wall Listening Device Adjustable Threshold Frequency 3.5" Standard Interface

...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 ...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Through Wall Listening Device 4×1.5V AA Battery Power Transducers 1mW Signal

Listen Through Wall Device Specification 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 ...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Police / Prison Spy Listening Device Through Walls 3.5" Standard Interface

...device is popular 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 ...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Adjustable Recording Wall Listening Device With 9V Battery HWCW-IV

...Listening Through Wall System Model: HWCW-IV Description This multi-function stereo listen through wall device is popular in similar products nowadays, which can give listener the clearest audio information ...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Lightweight Stereo Wall Listening Device Low Frequency High Detection Sensitivity

...Listen Through Wall System Model: HWCW-IV Description This multi-function stereo listen through wall device is popular in similar products nowadays, which can give listener the clearest audio information the...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Stereo Wall Listening Device For Secret Spy On / Observation With Two Channels

...Listening Through Wall System Model: HWCW-IV Description This multi-function stereo listening through wall device is popular in similar products nowadays, which can give listener the clearest audio informati...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Multifunction Stereo Wall Listening Device Built In 9V Battery

...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 no...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Two Power Transducers Wall Listening Device 1mW Signal Power 128×99×23mm

Listen Through Wall Device Description This two power transducers listen through wall device is popular in similar products nowadays, which can give listener the clearest audio information they are going to kno...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Mechanical , Electromechanical , Electronic Listening Device

...Listening Device Introduction: General Purpose: Detection of various timing devices: mechanical, electromechanical, electronic,as well as other electronic devices and gears by their electric, magnetic, acous...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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300g Portable Hidden Listening Devices / Spy Bug Listening Device Wireles

Stereo Stethoscope with Two Sensors For Listening Through Wall Introduction: The stereo stethoscope provides the capability to covertly listen through solid structures such as walls, ceilings,windows, doors and...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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USB Wall Listening Device Built In Recording Function

... Detection sensitivity Listening Through Wall System In Police Model: HWCW-IV Description This multi-function stereo listen through wall device is the most updated one in similar products nowadays, which ca...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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16GB Stereo Listening Device Detector System High Detection Sensitivity

Stereo Listening Through Wall System HWCW-IV Multi-Function Stereo Listen Through Wall System, which is a polupar amplifier in similar products, which will pick up the slightest sound through solid objects like...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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Wireless 3-5 M Radius 20Hz Wall Listening Device

High Sensitivity Wireless Listening System Device 3-5 M Radius Pickup Clearest Sound Description This wireless listening system consists of wireless transmitting part and receiving part, the wireless transmitti...

Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing,China

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