... 4096Interface modeRS232,USBTransmittanceWith glass,Optical transmittance above 90%;Do not with glass,optical transmittance is 100%Explosion-proofGlass explosion-proof,1kg ... ect.3.Public utilities:Telecommunications,Post office,Hospital,School ect.4. Public place:Metro,Airport,Book store,Park,Exhibition hall,Sports ... ,Bar,Internet cafe,Golf field ect. 42 inch FHD LCD Multi-touch screen AD Player