Genius 4 x 6 Inches Graphic Tablet with Battery-Free Cordless Pen and FREE Laser Touch Scroll Mouse (EasyPen M406) Great tool to drew, paint, sketch and write 4 x 6 Inches wide screen switchable working area Battery-free cordless pen Rolling pad for scrolling, volume up/down, zooming in/ out and brush functions Support Undo, Eraser, Next page and Previous page fast-access keys 2560 LPI high accuracy and sensitivity Pen clip design for easy storage