... 4.CE/FCC/ROHS/ISO9001 102 inch Sensitive smart boardInteractive whiteboards are used in lecture or classroom ... use, Green Product Specification TechnologyInfrared TechnologyTouch styleFinger or pen touchTouchMulti touchSize78'', 82'',96'', 102''Resolution4096*4096Linearity ... than 2W Functions Draw, write, edit, eraser.Smart pen,color fill,. Mathematics graphics Ruler,compasses,protractor, calculater ...