Net Weight: 56g.

Size: 9.5 x 5.5 x 3.4 cm.
Compatible with USB 2.0 & USB 1.1.
Ergonomic designed.
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 (Wired Equivalent Privacy); WPA (Wi-Fi Protected Access) and WPA2 data security.
Cable length:135cm (approx.).