The CHALLENGER PRIME RGB Membrane Gaming Gear Combo – Packs a whole lot of features at a budget friendly price with enhanced colorbar concepts, our basic customizable backlighting has been evolved for extreme customization. It gives a spectrum of visual effects featuring multi colors and provided users the easiest way to tune and most importantly, it colors up your life! Brightness can further adjusted via the dial in the front center of the keyboard. As with the CHALLENGER series of keyboards, the CHALLENGER Prime also features onboard memory for setting the dedicate macro keys. In addition, there are multimedia keys, shortcut keys, repeat rate and poll rate adjustment keys!