Kidzmouse Cookie Monster Computer Optical Mouse for Kids Designed just for kids and tested by kids between the ages of 2 to 10. Easy to use, small, and comfortable for little hands, KidzMouse works the way a child's hand works. A squeeze rather than a tap enables the child to click. KidzMouse bridges the gap between computer work and play. Its toy characteristics invite children to use the computer. Patented for small hands Works the way a child's hand works - a squeeze rather than a tap Easy to use, small, and comfortable for little hands Compatible with MAC and PCT wo mice work on one computer No Start up Software Required KidzMouse will work on a PC or the MAC with a USB or PS/2 with an adapter System Requirements :Windows - 98SE/2000/ME/XP/Vista/Win 7/Win 8/Win 10, Mac: OS9.1 and OS-X