Easy Pen M406 Tablet Tand Mouse bundle. Tablet: 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 Traveler 355 Laser Mouse: Laser Tracking Sensor. DPI Adjustment 800 and 1600. Optowheel "touch scroll panel" with quick scroll function.