Brilliant Color Illumination- With 11 unique backlights, choose the perfect ambiance for any mood. Adjust light speed and brightness among 5 levels for a comfortable environment, day or night. The double injection ABS keycaps ensure clear backlight and precise typing. From late-night tasks to immersive gaming, our mechanical keyboard enhances every experience Support Macro Editing: The K671 Mechanical Gaming Keyboard can be macro editing, you can remap the keys function, set shortcuts, or combine multiple key functions in one key to get more efficient work and gaming. The LED Backlit Effects also can be adjusted by the softwarenote: the color can not be changed Hot-swappable Linear Red Switch- Our K671 gaming keyboard features red switch, which requires less force to press down and the keys feel smoother and easier to use. Its best for rpgs and mmo, imo games. You will get 4 spare switches and two red keycaps as a gift to exchange the key switch when it does not work.