... system language)IR Touch SystemTouch TechnologyInfrared Single point (Multi touch include 2point, 4 point etc optional)GlassTempered ... drift, drive-free,waterproof,anti-dust,finger/object multi-touchOS SupportWin8/Win 7/ Win XP/ Win 2000 ... More Functions, Multi Languages,PowerPower supplyAC100~240V 50 /60 HZMaximum power consumption less than 250WStandby power consumption<1WTemperatureWorking ...