Anti-ghosting Keys: The Meetion keyboard comes with 19 anti-ghosting keys. Anti-ghosting keys ensure that your key presses are sent without error and in the order pressed. Two additional navigation buttons (Forward and Backward)<br />Brightness Control Key: Yes, a keyboard that lets you control the brightness level of your computer screen. This feature comes in handy when you are busy playing a video game and need to decrease screen brightness. Compatible with Various Window: Our black gaming keyboard has 12 FN shortcut buttons for multimedia, internet, etc. And on top of it this keyboard is compatible with Windows XP/Vista/7/8/10, Mac OS. Resolution DPI Switch. Precision Optical Sensor ">