· Adopt digital integrated circuit technology, low power consumption, high fidelity and extremely stable;

· Six speaking modes: Chairman-specific, first-in, first-out, last-in, first-out, restricted speaking, open mode, overwhelming rotation;

· The number of four speakers is optional, including: 1 person, 3 people, 6 people, N people (optional). According to the speaking mode, you can freely choose the number of speakers, and design the function of intelligently identifying the number of speakers;

· Power-on self-test function, all the button indicators flash around once, the host generates a beep when the connection status is abnormal;

·Intelligent power-off memory function, which can memorize the running status of the program; if the power is turned off unexpectedly, the last setting will be restored when the power is turned on;

· Use the touch button control panel to set the speaking mode and the number of speakers;

· Equipped with audio balanced output, 6.3 output port, background audio input and output RCA interface, recorder interface;

· Each system host is recommended to connect up to 60 conference microphone units, with 4 serial outputs, each channel can connect up to 20, and each additional power expander can access 60 microphone units.