1.interactive white board 2.infrared finger touch 3.Gesture recognition 4 ... to save journey cost and time. Dynamic Digital Sketchpad: With this tool, you can make some dynamic graphics to ... : The writtten contents can be automatically stored in the computer with formats of Word, Excel, PPT, HTML, PDF, BMP ... opaque objects, common writing liquid pens. 82" IR interactive white board with smart pen tray