Detailed Product Description big-size mouse Size:124*71*42mmIntroduction: 1.No need of dust cleaning,accurate definition and sensitive operation.2.different colors available3.Resolution:800dpi4.Compatibility: Windows95/98/NT/2000/Me/XP. 5.Lead wire:145cm.6.Connector:PS/2,USB,COMBO.7 Life time:1000000 times.