... Flow fans, no noise,Steel enclosure, Duachannel,stereopoweramplifier,touch internet kiosk touch screenSurface acoustic wave touch screen, infrared touch ... switch (main engine, display, audio, fan) volume tuningSingle point touchOver 50 million timesMao hardnessLevel 7Operating environmentDOS\Win9X\Win2000\WinXP ... code scanning, keypad, micro-printer, fingerprint roll machine touch internet kiosk....