● 2.4G Wireless touch screen pen mouse， USB receiver with plug and play
● Detecting the mouse movement with inertia， free to move in any space except glass
● Pen-type body can be operated easily
● Operated with only a thumb， off-table mini mouse
● Battery: 5 AAA batteries
● Page up / down function
● Moving mouse point more delicate than a regular mouse point
● 3-resolution adjustable: 800 / 1200 / 1600 dpi
● System requirements: Windows98 / XP / vista / Windows7 / 8 / PC / Mac OS