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Product features:

1, The sound of audio monitoring is clear and clean, with high sensitivity, low noise characteristics; 2, Automatically suppress high-intensity sound, reliable protection of back-end audio monitoring equipment; 3, Japan imported large diaphragm gold-plated capacitor microphone, 10m2-100m2 within the highly sensitive, high bandwidth, low noise; 4, Built-in dynamic DSP noise reduction processing circuit, and professional matching module, compatible with video recorders and network cameras; 5, Built-in automatic gain control processing circuit, effectively prevent speech signal attenuation, to ensure that the output volume is stable; 6, Built-in ALC level control circuit, automatically adjust the voice high, low strength and instantaneous voltage, current impact, protection of back-end equipment; 7, Built-in lightning protection head, power polarity reversal protection and power protection module; 8, The world's leading level of audio monitoring echo cancellation technology to effectively reduce the empty room of the serious echo; 9, The surfaceis a mesh structure, with the concave sound reflection cavity, and radio more realistic, less echo; 10, Through the Ministry of Public Security and police with electronic product quality testing center test. 11, This product is high sensitive and low noise series audio monitoring, and widely used in banks, prisons, public security, courts, prosecutors, examination room, conference rooms, industrial production, military power and other places synchronized monitoring recording.