Square Shaker Clock - Radio Quartz Movement Our adaptation of an early Shaker wall clock sets itself automatically by receiving radio signals from the official U.S. clock in Colorado. Reliable quartz movement uses one AA battery (not included). Solid cherry wood frame is 10" wide x 10" high x 2 1/2" deep. May be hung on the wall, like the original, or placed on a shelf or other flat surface. Made in USA.