State of-art-advanced optical technology Ergonomic design , comfortable control Optimal size to avoid fatigue after long period use .Tranquil -design wheel for scrolling four contact points to rescue resistance and enure excellent mobility. – Easy control on most surface . – No mouse ball.. – No need to clean the mouse parts. – No need to use mouse pad. – Compatible with microsoft WINDOWS 95/98/2000/me/xp/nt4.0/mac os9 or above – High resolution : 400 or 800 dpi USB or PS/2 interface 1.5m cable length.
