42inch digital signage floor standing support CF,SD,MMC,MS card and USB easy ... life :50000 hourscontrast ratio : 1000:1responsice time : 8msbuilt-in two stereo speakerssupport CF,SD,MMC,MS card number of color :16 ... material,which is painted by power-spray craftwork,black color,floor standing metal case.2 support media format: MPEG1/2/4 ...