DLAND New LED 2000 DPI Wired USB Optical Gaming Mouse for PC and Mac, 7 Programmable Buttons, Omron Micro Switches LED scroll wheel and Blue pulsating lights, It is Eye-Catching and Dazzling Adjustable DPI Function: 800/1200/2000,you can change Mouse speed easily Track your every movement with unparalleled precision, speed and continuity via this Gen 3rd optical 250Hz, 2000 DPI 7 button USB wired no programmed Gaming Mouse High Precision: 250 Hz. Polling rate is the frequency a mouse can send back this data. A 500Hz polling rate means a mouse can send the data 251 times a second. High polling rate can possible to reduce the likelihood of your movements being misinterpreted Plug & Play, Compatible with Windows 7, 8, Windows XP, Vista, ME, 2001 and Mac OS, or the latest system