... CE,RoHs,certification Smd Full-Color 3 in 1 Indoor Led Display(ph12) Applications:1,Outdoor:Shopping malls,Department ... stores,Sports halls,City halls,Commercial advertising,etc.2,Indoor:Broadcast-centers,Cinemas,Exhibition-centers,Conference-rooms,Entertainment-centers ... & software of led studiocommunication distance<100meters(by cat5 net cable),500meters of muti-mode optical fiber;1000meters of ...