Now write on your Monitor with the Pen.
Dual function Pen- Works as Mouse as well as Pen for Writing
Write/ Annotate on Blank Screen, PPT, PDF, Word, Excel, Web etc.

As connected to large Display ( Projector/ LED ) so whatever written on the Monitor is clearly visible to audience.

So it's the ideal tool for large Venue Presentation, and Bigger Size Lecture Hall teaching.
It can be fixed in the Podium, Conference Table or Teachers Desk.
Used in for various purpose Digital Signature, Paperless office etc.