- Aluminum alloy panel embedded with Mohs hardness level 6 touch glass, equipped with 4.5 “TFT fully laminated touch screen, graphical human-machine interface is easy to operate, improve debugging efficiency; - With 12-way conference unit connection interface, support 4-way 8-core professional shielded cable interface and 8-way network cable interface, a single host can be connected to a maximum of 240 units; - System capacity of 76,800 units, support for ring hand-holding, one-line, splitter box, T-type various connection methods; - With first-in-first-out, last-in-first-out, number of restrictions, the chairman allows (application to speak), voice-activated start, time-limited speech, queuing up to speak, free discussion of the eight conference modes; - The number of speakers can be set to 1-20, the chairman and VIP are not subject to quantity restriction, and the free discussion mode can be opened in full without restriction; - Adopts high-fidelity lossless audio transmission technology, 48KHz audio sampling frequency, frequency response of 20Hz-20KHz; - With noise suppression circuit system, based on the fifth-order Butterworth low-pass filter voice noise reduction method of denoising the sound signal; - Built-in DSP digital audio module with adaptive feedback suppression, digital equalizer, automatic gain function to maximize the elimination of interference, distortion, crosstalk and other phenomena;