... 16:9 are available. 2. Digital pens: three color pens eraser 3. Wireless: support 30meters wireless o Board Features 1. Touch ... . Digital pens: three color pens (blue, back and red) and eraser. (optional)8. Wireless: support 30meters wireless operation. Software Features:1 ... moveable, previous page, next page, select, rotate, zoom in/out, eraser.2. Use finger or pen as a mouse: single click ...