1) 2.4GHz wireless technology
2) Optical sensor up to 800 / 1600 dpi
3) With power switch
4) 3 buttons optical wheel mouse
5) Step and scroll wheel design
6) Superior navigational control
7) Designed for left and right hands
8) Compatible with Windows 98 SE / 2000 / ME / XP / VISTA
9) Dimensions of mouse: 77mm x 43mm x 18mm