six microphone input (3 in the front, 3 in the back), with Anti-howling function. 

The volume of the machine can adjust alone, and the volume of the microphone also adjustable. It is very easy to adjust that only one time to achieve the best effect.

Various effects in memory, voice forward rendering technology, very convenient for memory adjust.

Two audio frequency input can switch. 

Built-in subwoofer output, adjustable crossover frequency, microphone high, the mid and low frequency can be adjusted independently.