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Product details of CCTV Mic Microphone Sound pickup monitor voice audio ( A3 ) Sound pickup use the high fidelity and low noise process chip Adjustable sensitivity low noise mini shape sound audio monitor,low power dissipation & long distance Low noise, high fidelity, wide operating voltage, low power dissipation and long transmission distance Super high sensitive mini microphone capturing audio evidence for security camera system Widely used in banking, finance, shopping malls, classrooms, conference rooms, industrial production and many other places Product Name:CCTV Mic Microphone Sound pickup monitor voice audio Power Supply DC-6V-12V Work Current 20mA Frequency Respon 20kHz-10kHz Output Level 0-6Vpp Monitor area 5m-150m