Central Unit (DC-80CU)
Power Supply: Built-in 100W.
Chassis: 19-inch, 2U standard design.
Connections: 2 output, each supporting 40 units; can up to 10 chairman unit, expandable to 250 with additional equipment.
Output & Input: Support XLR balance output, support unbalance RCA AUX output and unbalance AUX input.
LCD Display: Displays working modes, sub-functions, speaker count, and levels.
Main Modes: Free Discussion (unlimited speakers), First In First Out (FIFO) for up to 19 speakers, and Limit Mode.
Sub-Modes: Chairman Exclusive, Automatic Switch-Off, Chairman Priority Prompt.

Chairman Unit (DC-80CM)
Microphone: Gooseneck with LED indicator for speaking status.
Audio Quality: Supercardioid condenser capsule for clear sound.
Structure: Lock-type plug-in separation for secure connection.
Controls: Microphone ON button and priority button to mute delegate microphones.
Priority Functions: Unrestricted by speaking modes and FIFO, with voice-controlled shutdown and priority music prompt.

Delegate Unit (DC-80DM)
Microphone: Gooseneck with LED indicator for speaking status.
Audio Quality: Supercardioid condenser capsule for precise sound capture.
Structure: Lock-type plug-in separation for secure connection. 
Controls: Microphone ON/OFF button and automatic shutdown after 35 seconds of silence.
Working Modes: Controlled by the central unit with Free Discussion, FIFO, and Restricted Mode options