1.It use the long life service and no noise of touch swith
    2.Built-in high fidelity of capacitor sound head, its sound quality is   clear and low noise,it has strong pickup distance.
    3.The meeting model:FIFO/LIMIT/FREE.
    3.Effective scream suppression, super pick up sound effect
    4.The annular red indicator lamp can show the working state on   microphone.