B&W Cases Portable USB Powered Touchscreen Monitor - E205 7 Inch 800 X 480

Uses Only A Single Usb Cable - No Vga Cable Power Brick Necessary Easily Extend Your PC Monitor Responsive First-Class 7 Inch Touchscreen Extremely Useful For A Variety Of Applications Built In Extendable Table Stand And Stylus Durable Hard-Molded Abs Plastic Construction Manufacturer Specifications Primary Function: 7 Inch Usb Touch Screen Monitor For Computers Screen: 7 Inch Tft Lcd 4 Wire Resistive Touchscreen Operating System: for Windows Xp Sp2, Windows Vista 32Bit, Windows 2000 Sp4,Windows 7 32Bit And 64Bit, Mac Osx Brightness: 250Cd/M Squared Contrast: 500: 1 Aspect Ratio: 16:9 Resolution: 800 X 480 Backlight: Led Viewing Angle: 70¡ã/70¡ã(L/R