Radio Tube Alarm Clock – Modern Vintage: New technology, old style. Sealed inside what look like vacuum tubes, LED numbers glow to tell the time. The two at the back left show the hours, and the two at the back right show the minutes. The first three numbers in front tell the seconds. (The time shown in the photograph is 12:39 and 20.8 seconds.) Clock shows military time. And it even has an alarm. About 10"w x 5"h x 4 ½"d. 72" cord. Metal and plastic.