... play different contents in different windows. 4. Compatible multimedia file formats: MPEG1/2/4, AVI, RM, WMV, DAT, ... ect.3.Public utilities:Telecommunications,Post office,Hospital,School ect.4. Public place:Metro,Airport,Book store ... center ect.5.Real Estate Prooertt:Department,Villa,Office ,Business building,Open houses,Sales offices ect. ... sensor LCD AD player with brochure holder for bank&office