Compatible with USB 2.0 & USB 1.1
800 dpi for accurate control
The roll wheel can be easily guided pleasantly and used as the third usable key
Optical scanning on almost all surfaces, No mouse pad needed, functioned on the most surfaces.
Suitable for left and right control
Work with: Windows98 SE/ ME/ 2000/ XP / VISTA
Supports 64-bit, 128-bit WEP ; WPA