... dimming control interface, 1-fold 20A switch control interface, 11-fold switch interface; The built-in programming data without ... CD/MD,PA,Mixer,Microphone,Console etc.Data Equipment: Computer and others related.Environment Equipment: Light,Motorized Screen,Electric ... Off ModeStrengths and Weakness AnalysisTraditional meetinga)One-touch switch,Tedious operation;b)Not linking control with meeting ...