Audiovisual Meeting Rental LED Display 1.long lifespan 2.high brightness 3.High reliability,resolution, refresh rate Audiovisual Meeting Rental LED Display The led commercial advertising display screens are ... (manually),100 levels of each color(automatically)Input signalRF,S-Video,RGB,RGBH,YUV,YC&Composition ,etcControl systemlinsn(sending card,receiving ...