Sensitive Smart board 1.4000 Square Meters Factory 2.100 Staffs ... surface and then either control the applicationby touching the board directly or by using a special pen. The computer ... pen,color fill,. Mathematics graphics Ruler,compasses,protractor, calculater,timer,sportlight,magnifier,curtain.Insert images, video, flash, word, PPT ... years service lives.FactoryPacking 102 inch Sensitive Smart board