... commend centers, board rooms, etc. Features: Support multi-touch by pen, finger, and other opaque object.Faster response and higher resolution ... cableTouch technologyOptical imaging (no special surface coatings)Touch methodFinger, glove hand, pen, any other pointer or opaque object Stylus minimum diameters 6mm ... parts and technical support SKD interactive optical multi-touch by pen, glove hand,finger