... , board rooms, etc. Features: Support multi-touch by pen, finger, and other opaque object.Faster response and higher resolution ... imaging (no special surface coatings)Touch methodFinger, glove hand, pen, any other pointer or opaque object Stylus minimum diameters ... 85°COperating humidity: 10% to 90% RH, non-condensing; Storage humidity: 10% to 90% RH, non-condensingPower supplyUSB. Working voltage: + ...