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1. Professional high fidelity cardioid directional capacitive electret microphone with sensitive pickup and clear voice, and the bandwidth reaches 20Hz ~ 20kHz

2. Anti interference circuit design is adopted to prevent the interference of mobile phones and other electronic products.

3. It has the function of five key voting / voting / election

4. The speech switch button has a transparent speech pattern, which is always on when speaking

5. With 2.3-inch high brightness LCD, the display content is clear

6. With headphone output socket, the sound quality is clear and convenient for monitoring,

7. With audio start function, the microphone unit power will be turned on automatically when speaking.

8. Cooperate with PTZ camera to automatically track the camera,

9. Cat6e special network twisted pair connection and RJ45 interface are adopted between units