The DPIof the mouse is as high as 3500. It is the mouse with highestDPI in the E-Blue gaming mice. It is made to let you enjoy anextraordinary gaming experience.Optical type:Red waveWired type:USBWire length:1.8MDPI:adjustable 500/1750/2500/3500Switch Life:5000000 timesSize:126*62*40mmProduct Compatibility:Windows 98/ 2000/ME/NT /XP/win 7