1. Each host can connect 60 on behalf of the unit, and extension units can accommodate 180 delegates to participate in the meeting.

2. Two channel conference microphone control circuit.

3. Independent single, mix and array combination.

4. Limit the number of deputies鈥� speech, this system can choose 3 or 6, 3, elected chairman can control three sets of representative unit and all units at the same time to speak; When elected 6, can control, chairman of the six sets 

of representative unit and all units at the same time.

5. Chairman, on behalf of the microphone, port digital light ring.