DC 9?15V CCTV Microphone Waterproof Sensitive Sound Monitor Mic for Surveillance System

Feature: 1. Wide application ranges. Suitable for prison, detention center, detention center, police station, etc. (5 ? 50square meters). 2. High sensitivity, low noise, very low power consumption, power supply polarity protection circuit 3. Signal transmission distance is approx. 1000m/1093.6yd. Frequency response is 20Hz ? 20kHz. 4. Connection method is 3?wire system. Red is connected to power positive pole, black is connected to public GND, white is connected to audio positive pole. 5. An electro?acoustic instrument that amplifies sound by receiving sound vibrations. Specification: Item Type: CCTV Microphone Material: Aluminium alloy Place of Use and Area: For prison, detention center, detention center, police station, etc. (5 - 50square meters) Signal Transmission Distance: Approx. 1000m/1093.6yd Frequency Response: 20Hz - 20KHz Directional Property: Omnidirectional Connection Mode: 3 Wire system (Red is connected to power positive pole, black is connected to public GND, white is connected to audio positive pole) Transmission Cable: RVVP3 x 1.5mm2 Power Supply Voltage: DC 9 - 15V. Package List: 1 x CCTV Microphone1 x English Manual