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.
    5.The chairman unit can turn down the delegate for anytime by priority   button.
    6.The speaking model:FIFO/LIMIT/FREE.
    7.The unit comes with 2.8-inch aluminum foil reticulated wire mesh, which   greatly reduces the interference of electromagnetic wave to wire