... * WIFI function option* 15’’ dual screen, main screen for touch, secondly screen for advertising *Excellent cable management hides cables ... :130Side Control PanelPower, Auto-adjust, Menu, Up, DownOn screen DisplayBrightness, The brightness, contrast, automatic adjustment, phase, clock, ... available at additional cost. 920CD dual screen 15inch touch Fanless POS terminal with I3 or I5 CPU from factory ...