... hourscontrast ratio : 1000:1responsice time : 8msbuilt-in two stereo speakerssupport CF,SD,MMC,MS card number of color ... which is painted by power-spray craftwork,black color,floor standing metal case.2 support media format: MPEG1/ ... ,negotiable securities,funds, insurance companies3 Non-profit organizations telecommunications.post offices ,hospital,schools4 public places subway airports,stations,gas ...