Description of this CCTV Microphone 201A Concealment type

Acoustic high-fidelity pickups,choose the low-noise processing chip,voice clear and clean,beautiful sound,pure,multi-stage amplifier,wide dynamic effects,built-in automatic gain control (AGC) circuit carefully designed.
Exquisite aluminum shell design,multiple frequency selective filtering effectively suppress the ambient noise and high frequency interference sound,to achieve the perfect sound effects.
With low noise,high fidelity,a wide range of operating points,low power consumption,the new sensitivity adjustable,long distance transmission and so on. Adapted to a variety of monitoring recording places such as banks, prisons,examination rooms,shopping malls,industrial production,etc. (clockwise rotation is volume increase), which is the best ideal product for TV monitoring and security intelligent system and is used in conjunction with HD cameras to realize video Audio synchronization.

Notes:
1. The transmission wire requirements: a core shielded line, the best ideal is SYV75-3.
2. The potentiometer adjustment: clockwise rotation of the volume