Zelotes 7200 DPI 7 Buttons Professional LED Optical USB Wired Gaming Mouse Mice for Gamer Intelligent connectivity, no need to code, plug & play (No need CD driver). DPI:1000/1600/2400/3200/7200,Polling Rate:500Hz,DPI and Polling Rate settings are closely related to the game performance,high polling rate can possible to reduce the likelihood of your movements being misinterpreted. Perfectly designed to fit snugly under your palm,Ergonomic design,internally and externally,to create the ultimate game concept,long-term use without fatigue. The hot key design: the first button of the left is the free double-click button, and the second, the third button are forward key and back key; more convenient to scan the web-page and files.The LED color light will constantly change when you connect the mouse to your computer, but it can be turned off or set to a certain color if you like. Compatible system:Windows 98/ 2000/ ME/ NT / XP/ win 7/ win 8/ win 10/ Mac OS and other OS,plug & play