On the hour, the Seiko QXM539BRH Melody In Motion Clock Model dial that will separate into 4 sections that reverse while a Beatles melody, Classical or Christmas carol plays on the hour. This musical clock features on the hour plays one of Eighteen Hi-Fi melodies on the hour. Real solid wood frame with stury finger joints on the sides. Volume control, Demonstration button and a Light sensor sensor quiet the clocks when the lights are subdued in the evenings. Accurate Quartz movement. Requires 1 “AA” & 4 “D” batteries.