[UPDATED VERSION]: DPI Upgrade to 3200DPI, 4 DPI Levels: 800DPI (Red) / 1200DPI (Green) / 2400DPI (Blue) / 3200DPI (Pink), Default Value: 1200DPI 7 Kinds of Circular & Colorful Breathing Light Effect, Flashing Indicator When DPI Switch ( Warm tips: can not set in one specific color); Press Forward / Back Button + DPI to turn off the light Ergonomic design, fits naturally in your hand; 6-buttons for superior productivity and efficiency 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 Go with full 18-month manufacturer’s warranty