1.It  use aluminum panel shading process, and installation is embedded.
    2.The aerospace connector, can split the microphone.
    3.It use long life service and no nosie of touch swith.
    4.Built-in high fidelity capacitor sound head,  its sound quality is good and low noise,it   has strong pickup distance.
    5.Effective scream suppression, super pick up sound effect
    6.The red indicator lamp can show the working state on microphone.
    7.The chairman unit can turn down the delegate for anytime by priority   button.
    8.The unit have 2.1M/8P Shielding wire, which greatly reduces the   interference of electromagnetic wave to wire
    9.The speaking model:FIFO/LIMIT/FREE.