The interactive whiteboard can distinguish different handwritings. It supports multi-point input writing and two-color strokes. You can set the thickness, color, opacity, etc. of the handwriting. The interactive whiteboard ensures that multi-person collaboration and writing on the same screen is barrier-free. The interactive whiteboard needs to be adjusted and modified when writing content. , You can easily adjust your idea through a variety of erasing methods. Such as selective circle rubbing, fine point rubbing, sliding screen clearing, etc., flexible modification and convenient operation.