1.Built-in single chip computer control circuit and tracked by the high-speed cloud   camera ball.
    2.Built-in high fidelity condenser cartridge, which makes sound reduction,   high resolution and low noise.
    3.Effective scream suppression, strong pick up sound effect.
    4.The microphone's appearance is patent design.
    5.The annular red indicator lamp can show the working state on   microphone.
    6.The chairman unit can turn down the delegate for anytime by priority   button.
    7.The unit has equipped with the2.1M,8P aluminum and 3M T type aluminum   aluminum foil network shielding wire.
    9.The speaking model:FIFO/LIMIT/FREE/CHAIRMAN.