Highlights: Optical Sensor 800dpi Works with Windows 95/98/ME/NT/2000/XP/VISTADesigned to fit your notebook computer Sensitive Buttons Accurate definition Br&-new ergonomic design, comfortable hand touch Scroll up & down directly without moving your hand Switch vertical to horizontal wheel Accurate definition & sensitive operation Specification:
Colour: Blue Interface: USB (Universal Serial Bus) 2.0 Resolution: 800 Wireless Range: N/ACompatibility: Windows 95/98/ME/NT/2000/XP/VISTADimension (cm): 7.5 x 4.3 x 2.5 Weight (Kg): 0.1 Package Contents:1 x USB