... : 16:9panel life :50000 hourscontrast ratio : 1000:1responsice time : 8msbuilt-in two stereo speakerssupport CF,SD,MMC,MS card number of ... .0 (host)applicable fields1 business organizations : supermarket,large-scale shopping malls,exclusive agency,chain shops ,large-scale sales, star-rated hotels,restaurants,travel agencies ...