Koolertron Backlit Gaming Keyboard Ergonomic 3 Adjustable Color with Luminous Keyboard and Mouse Set The keyboard and mouse set surface with crack pattern, fashionable and novelty design. Three color breathing light pattern, asjustable color with the adjustable brightness. The FN key extensions: FN+SL can change the color of the keyboard, FN+/ can adjust the brightness of the keyboard and more. 19 key does not conflit bring you new peculiar experience. The ABS material give you comfortable and cool soft Touch;The mouse with DPI governor, adjustable 1000/1600/600 speed.