Main   Feature:
    * With independent microphone whistle automatic switching module, the   unique 10 millisecond ultra-screaming called induction technology；
    *The front panel can be set on the music and microphone maximum volume   limit device；
    * EXCLTER incentive function to make sound quality more perfect and   beautiful;
    *With precision DSP processor, can meet the high-speed need of "effect   of the classic algorithm," creating a surprising sound field effect.