interactive whiteboard smart board for sale for school 1,dual touch 2,optical imaging. 3,support windows 7,windows8. Optical ... board for sale, CE FCC and RoHS certified Main features:1,touch accuracy: 32767*32767.2,no pressure and no special ... 7Installation Way:Wall mounting& Mobile standLife Time:10years Advantage:1. Support two fingers/normal pens/any opaque objects operating together under WIN72 ...