The 2 1/2"H x 1-1/4"W bright red LED digits are easily seen from across the room in darkness as well as in light. This wall clock has a selectable 12-hour or 24-hour display format and has PM and alarm indicators. Both the clock and alarm time can be set on the unit itself or by remote control. Works on AC120V. Comes with a 10' cord, a stand for bench top use, and a remote control with button cell battery. UL approved. Dim: 12" x 6.5" x 1-1/4". Weight: 24 oz. (696 g).