20 colorful sparkling LED lights synchronized with hourly melodies On the hour, the clock plays one of 6 melodies with motion Melodies include: Amazing Grace, The Planets "Jupiter", Waltz Of The Flowers, Salut d"Amour, Pictures At An Exhibition "Promenade", Dance Of The Reed Pipes Powered by 4 D batteries (included) Overall dimensions: 18.25 X 16.5 X 4.25