The screen is programmable and includes a USB charging cable that can be plugged into the computer for custom programming. A preset custom message can be added before it ships out. There are 2 buttons that operate the screen functions. Press the top button and release when the screen turns on. Press and hold it again to turn it off. The lower button controls the screen brightness in stages of 20%, 60%, or 100%.
The other 4 lights run on one 9 volt battery housed behind the aluminum panel on back and are operated with the side mounted toggle switch.
The blue lights below the screen flash with connectivity like the lights of an internet modem. The silver dial glows bright white.