*USB Interface.
*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.)