Wall Clock, Digital, Clock Movement Type Radio Frequency, LED, Shape Rectangle, Frame Color Black, Basic Power Source Electric, Mount Wall, Digit Color Red, No. of Digits 6, Width 15 1/2 in, Features 20 Second Time Updage Frequency (Requires Item# 2LMU3), 6-Digit (Hh:Mm:Ss) Time Format, Anti-Glare, Automatic Daylight Saving Time Adjustment, Black Bezel, Low Profile Design, Rf Wireless Synchronization, Shatterproof Lens, Ultra Bright Red Led Digits, Up To 250 Feet Viewing Distance