During tournaments you need a non-interfering experience. Competition mode lets you customize which buttons you can press, and lighting effects to show that you are serious.
By default, competition mode will turn your keyboard into a fixed, low-brightness Orange backlight mode, and can be toggled by pressing the Fnatic button on the keyboard. This mode is completely customisable in Fnatic OP.
Please also be informed that Fn keys, in mentioned mode, cannot be disabled intentionally. If disabled and Fn-lock is not active, the user can not execute any key bindings or access media keys. Hence why we disallow it as it may create lots of confusion.