... auto calibration,natural writing,muti users,infarad The i-Interactor DG-100 consists of i-cam, i-pen, USB cable, user manual, driver ... and be used to hang the i-Interactor at the certain place if necessary. i-Interactor interactive boardOther brands board Positioning accuracy, ... XP/VISTA/2007CPUIntel P4-1.0GRAM128MHard Disk50M i-Interactor,i-Pen,i-Cam,iwb portable interactive white board