... be recognized by pens, ruler, protractor, set square, searchlight and other tools, and to page up/down, drag object, clone object, etc. Also ... you to write, move, rotate, zoom in/out object and shift page, etc. with your finger instead of e-pen;Adopt 6 ... makes the learning and teaching more interactive and efficient;Wireless Bluetooth WIFI, and earphone can be built in;The operating page can be ...