Automatically enters sleeping mode if not used for 10 minutes; Any key press will awaken and backlights turn back on. Standard 105 Keys full size keyboard; Comes with 11 special designed multi media keys combinations,Measures 17.1 x 5.3 x 0.9 inches. 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. 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. 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.