1.Easy use,plug and play,don't need any driver. 2.Perfect design.USB Interface.Optical mouse. USB Optical Scroll Wheel Mice Mouse For PC Laptop Notebook ComputerDescription: 1.Easy use,plug and play,don't need any driver. 2.perfect design. 3.USB Interface. 4.Optical mouse. 5.3 buttons(one scroll wheel) 6.Compatible system: windows98 SE/ Me/ XP/ Vista/Win7/Mac 7.Weight: 0.07kg 8.Size:8.5*6.5*4.5 ...