-Mini Crystal optical mouse
-Mini style , the latest orientation technology ,high accuracy an reliability
-Dispensed with mechanical parts and trackball
-Dispensed with mouse pad and reflector board
-Super long working life
-400dpi or 800dpi resolution
-Interface: USB,PS/2 and Combo optional
-Small size,space-saving on desk ,ideal for travelers
-Works on almost any surface,including wood and plastic.