Wired Synchronized Digital Clock, Digital, Clock Movement Type Radio Frequency, LED, Shape Rectangle, Frame Color Black, Basic Power Source Wired, Mount Wall, Digit Color Red, No. of Digits 4, Width 11 1/2 in, Features Anti-Glare, Automatic Daylight Saving Time Adjustment, Black Bezel, Continuous Time Update From Pyramid 7000 Master Clock Controller (Item# 1Pb82), Low Profile Design, Master Clock Synchronization, Shatterproof Lens, Up to 250 ft Viewing Distance, Case Material Plastic