Etekcity Scroll S200: High Precision 2400 DPI Symmetrical Optical USB Wired Mouse High-precision optical sensor for reliable responsiveness and stability for fast gaming Includes quick DPI shift button 800/1200/1600 DPI for fast adjustment between games and uses Symmetrical & Ergonomic: Suitable for both right and left handed users. Forward and Backward function programmable buttons for customized navigation Blue attractive LED backlight gamer design.Sliding the switch can turn ON or OFF the LED on bottom of the mouse Plug and play. No setup or installation required. Compatible with Windows XP / Vista / 7 / 8 / 10 / Mac OSX and Linux