Our Polka Dot model is a modern classic. The conspicuous design, this mouse brings color to the gray everyday life and goes with any outfit. Modern Optical Mouse Connection: USB (suitable for PC and Mac) Resolution: 1200 dpi 36 months warranty System requirements: Windows ® 95/98/2000/ME / XP / NT / Vista, Mac ® OS X 10 +, Linux Software: Easy installation with no additional software