"When you take a closer look at the command unit, you can see that the top four buttons are "F1" through "F4" and directly next to the "F" buttons is an LED backlight switch that allows you to either have red, green or yellow as your backlight color. Unfortunately, the red LED line on the bottom of the unit stays red no matter which setting you have the LED backlight on. The keys are very easy to push, almost too easy. Right above the joystick is a screw that you can tighten or loosen to keep the joystick in place, because Saitek allows you to move the joystick further or closer to your hand. I have big hands, so for me, the best setting was furthest away from my palm."