Enjoy all day comfort with the full size 2 4ghz wireless blue trace mouse that is windows 8 optimized with two hot key buttons for charm menu and application switching the 5 button mouse works on virtually any surface and includes a built in scroll wheel for quick navigation the 1600 dpi high performance optical led sensor provides smooth and precise cursor control on large high resolution displays this mouse is beautifully sculptured with a contoured shape soft rubber grips curved sides a