... features: Optional size:15" 17" 19" 22" 32”,37”,42”,52” etc Touch screen:SAW or infared ... Brand:LG or SUMSUNGSize: 15" 17" 19" 22" 32”,37”,42”,52” etc Aspect ratio: 4:3/16: ... ; stereo Loudspeaker; magnetic-proof,net card, sound card,integrated display card, Operation system: Windows2000/XP/Vista, RedHatLinux/FedoraCorePower supply ... for more information. Interactive kiosk/ AD player/ digital signage