Beijing Heweiyongtai Sci & Tech Co., Ltd.
Beijing Heweiyongtai Sci & Tech Co., Ltd. Beijing Heweiyongtai Sci & Tech Co., Ltd. was established in the beginning of 2008. We are a hi-tech enterprise specializing in manufacturing and trading
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Stereo Wall Listening Device Via Board / Plate
Model: HWCW-IV
Description
This HWCW-IV Stereo Wall Listening System is a special amplifier that able to pick up the slightest nvoice via solid objects like a wall or plate, so you can listen to what is happening at neighbour. 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 suitable and has been widely used in police, prison and intelligence department etc.
Features
● High Detection sensitivity.
● Pick up slightest voice
● The Threshold Frequency,gain of the amplifier and microphone are adjustable.
● Channel 1, channel 2 separately or simultaneously.
● Built-in recording function
Technical Parameters
| Dimension | MCU(main control unit): 131×125×42mm; 41×18×15mm |
| Total Weight | 956g |
| Power Supply | Built-in 9V battery |
| Battery Working Time | 5 hours without recording; 4 hours with recording |
| Audio input | Left and right double track |
| Audio output | Left and right output simultaneously, or left and right output separately |
| Audio adjust | Gain adjustment, low frequency, high frequency filter adjustment and volume adjustment |
| Headphone output | 3.5” standard interface |
| Recording output | Built-in recording module, real-time recording by USB external dedicated recording memory |
| Recording memory | 16GB (continuous recording about 500 hours) |
