Mouse function: the electronic pen tip is equivalent to the left mouse button, and the pen body button is equivalent to the right mouse button. Use electronic pen to realize mouse click, double click, select, drag, right click and other functions; Restore and update the content of interactive electronic whiteboard. Auxiliary tools: directly use the board shortcut toolbar to realize screen content amplification, spotlight, screen masking, view snapshot, view blackboard script, screen calibration, and use customized functions to call computer applications or access the set web page at any time.