100% NEW.

Compatible with USB 2.0 & USB 1.1

USB interface.

Ergonomic designed

1200 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

Cable length:135cm