【Mult-compatible】Compatible with these system such as Windows 98/ 2000/ ME/ NT / XP/ win 7/ win 8/ win 10/ Mac OS and others,plug & play,your best choice to office and game. 【Precisely design】Build-in memory storage chips,memorizing while powered off,permanent momory,to creat a ultimate gaming experience to all gamer friends. 【LED cycle breathing mode】Unique breathing LED backlight provides a soothing and calming ambient light.Four different colors provide stunning visual effects that you can enjoy it while you're using it. Press Forward / Back Button + DPI Button can turn off/on the breathing LED light.