Rhythm Clocks "Marvelous Magic Motion Clock Contemporary has never looked this Marvelous. On the hour, the dial opens up into 6 sections revealing instruments and music notes On the hour, the face opens and showcases its 38 different genuine Swarovski crystals including those adorned on the flower shaped wheel that steadily rotates at the bottom of the clock Every hour on the hour the face of this Marvelous clock comes to life while spinning to reveal the beauty within all while playing one of its 30 melodies including 12 popular melodies, 12 classic melodies or 6 Christmas songs for you to enjoy Optional volume control, On/Off switch and display button lets you silence your clock on demand, while it still keeps perfect time Clock measures 20.6 high by 15.9 wide by 3.87 deep and operates on two D batteries that are included to help keep the clocks precision Quartz movement