7 Kinds of Circular & Colorful Breathing Light Effect, can not set in one specific color; When you turn on the switch stop location in the midst,will turn on the mouse.When you turn on the switch stop location in the bottom,it will turn on the Backlit LED. Comfortable touch, good hand-feeling, 1600 DPI (800/1200/1600 3 level DPI adjustment) ,Meet your multiple needs, either for daily work or gaming. 5-buttons for superior productivity and efficiency,Durablesmooth Teflon feet, quality ABS construction & ultimate gaming control Simple to use –just “plug and play”. No additional software or firmware required; Support operating system:Windows 2000/2003/ Win7 / 8 /10/ Vista/ ME/ Mac OS/ Linux Special Setting Switch Button on the back side of the mouse let you take command with maximum efficiency; 18-Month Manufacturer's Warranty