This versatile clock is finished in a metallic gray and can be wall mounted or use the built-in foldable easel stand to display on a table top. Large, 2" tall numbers display the time in 12- or 24-hour format. The display also shows the day of week, month, date, and indoor temperature in ?F or ?C. This clock receives a radio signal from the cesium atomic clock, the most accurate clock in the world. Radio controlled clocks display Continental US Time Zones only. PLEASE NOTE: Radio signal Radio controlled, battery-operated alarm movement, automatically adjusts for Daylight Saving Time, and requires two AA sized batteries (not included). Overall Dimensions: Height 6.25" (16 cm) Width 9.5" (24 cm) Depth 1.5" (4 cm)