1.The unit has built-in the MCU control circuit,it can   realize-digital management,it has video auto-tracking functions.
2.It uses the environmental protection, low power consumption and  seal of touch switch.
3.The ON/OFF state,dynamic level and    volume of microphone can show on the LCD.
4.It uses the electronic code of switch to adjust the volume.
5.The microphone unit has built-in high fidelity of capacitor sound head,   its sound quanlity is clear and low noise,it has strong pickup distance and   it has suppression the howling function.
6.The unit has built-in speaker and headphone jack,it can play background   music and expansion the voice.
7.The annular blue indicator lamp can show the working sate on the   microphone.
8. The chairman microphone can turn down the delegate unit by priority   button.
9. The base of material is metal, it more stable and more generous.