1,size:24,32,42,55,63,82(optional) 2, ... 3,TFT-LED screen 4,indoor advertising display Product Features:1.Support multi-zone split-screen display.2.Support for horizontal ... play , hot swappable , content updates easily and quickly14.MPG, MPG -1 , MPG - 2 , MPG - 4 , AVI, MP4, DIV, the TS , ... quality22.Support USB direct program updates and upgrades 55 inch supermarket shelf network advertising display