Rii Three Colors Backlit Keyboard and Mouse, Wired Keyboard and Mouse Combo, USB Keyboard and Mouse Set,Quiet Input Gaming Keyboard,Optical RGB Mouse for School,Office,Business and GamingBacklit Keyboard & Mouse BundleBacklight keyboard & mouse wired set, three color backlit, three adjustment modes. FN+LIGHT: breathing light mode, click "Light" is a single color stay on mode and you can adjust the keyboard backlight through FN+PGDN PGUP Brightness, this is design to take case your eyes. If you want to use it in low key,just click the Light key three time to turn off the backlit Full Size Standard US LayoutHigh quality ABS ,Premium