The table top is removable and supports hot swapping. All-digital audio technology, built-in high-performance dual-core CPU, 32bit high-speed DSP floating point processing, fast processing speed. Good sound quality effect. With the increase of system units, the noise will not increase, and the interference factors of the line will be greatly reduced.Support 48K audio sampling rate, frequency response 20-20000 Hz;digital audio processing and transmission technology. Speak regularly, and multiple languages are available. The chairman microphone unit directly controls the overall meeting. Anti-cell phone and electromagnetic interference function. Microphone screen brightness can be adjusted. Standby pictures can be switched at any time and freely selected with the call function of “paper towels, tea, secretary, technical staff, paper and pen.