Wlauqueta 2 x Audio Surveillance Mic Sound Pickup Microphone for CCTV Security Surveillance IP Camera Built-in Preamp Wired Voice

It is a closed loop restricted circuit dynamic of electrical noise that completely eliminates noise. The reentrant eliminates that can reduce the low in empty rooms. Processing chip: High quality audio digital analog processor, high fidelity, adjustable sensitivity product. Use the high-fidelity digital processing chip, amplify the audio signal via coding and decoding technology. It can effectively background noise and high-frequency interfered voice. Feature: Audio monitor to upper, audio head, sound jack. Perfect voice. Pure drum, integrated AGC circuit with strong dynamics. Many strengths: low noise, high fidelity, wide operating voltage, low power dissipation and long transmission distance, etc. The new sound sensor (audio monitor) is the for TV surveillance and security system. Use in correspondence with the camera can realize AV synchronization.