... of operable computers;b. writing function different pens (highlight pen, laser pen, etc.) can be used to write on the ... and suspending of the mouse. Meanwhile, the writing pen can be used for writing on any screen in a traceless manner, ... 5)Support functions of pencil, brush pen, combination brush pen (flat-head pen), laser pen, highlight pen, magic pen, creating pen, circling, deleting, etc.6)Provide ...