... auto calibration portable, only 0.5kg i-Interactor USB infrared interactive white board powerful professional teaching and meeting softwareHave English ... click, double click, drag, and right click functions, operate and control your computer, and use the matching software to write, erase ... VISTA / Windows 7CPUIntel P4-1.0GRAM128MHard Disk50M i-Interactor USB infrared interactive mini smart board