Professional Mechanical feeling backlit gaming keyboard,Ideal for desktop and PC; Can be used for gaming and office,not the real mechanical keyboard,,but it worth more. Support Win10, Win8, Win7, Linux, Vista, IBM PC Laptop Pad Google Android TV Box HTPC IPTV Smart TV Mac OS Raspberry Pi ,Chrome OS and Linux OS Features rainbow backlight with breathing light function; Press fn + light key to enter into breathing light mode; Press light button thrice to turn off backlight