lcd size : 7 " type : tft lcd ; effective viewing area : 152 mm x 91.4 mm resolution : 800 x 480 contrast ratio: 400:1 (typ) viewing angle: 140 deg (horizontal), 100 deg (vertical) brightness : 220 cd/m2 (typ) aspect ratio : 16:9 / 4:3 compatibility: card reader: cf(type i/ii),sd, sdhc, mmc,ms, ms pro,xd compatibility: file formats: jpeg,bmp,mp3,mpeg1,mpeg4 ; usb : usb2.0 memory: 128 mb audio : speaker : 1w x 2 power : voltage : 100-240v(auto switching), 50/60 hz (universal) power consumption: 5w (max) net dimensions: (wxhxd) 203.3mm x 142.4mm x 22.3mm; net weight: 0.34kg * digital photo frame - slim series , * audio / video function * viewsonic premium - slim series photo frame shows off user's photo & video memories in style on a high resolution display * load pictures directly form user's camera, computers or thumb drive, * create user's own slideshow with special effects & accompany the slideshow with their favorite mp3 & mp4 audio files using the built-in speaker * slim series are the perfect complement in the office or any room for any special occasion * digital panel , * built in 128 memory, * slim design