... Flow fans, no noise,Steel enclosure, Duachannel,stereopoweramplifier,touch internet kiosk touch screenSurface acoustic wave touch screen, infrared touch ... positive axis Flow fans, no noise, cyclic heat dissipationControl PanelPower switch (main engine, display, audio, fan) volume tuningSingle point ... code scanning, keypad, micro-printer, fingerprint roll machine touch internet kiosk....