... , chalk,and eraser. high sensitivity, write smoothly without breakpoint, ,Multi-color and multi-width handwritings are also available. With the i-pen, users ... AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); 80'' infrared portable interactive white board with high quality match with any projector for digital classroom