Manufactured by Rhythm Clocks , the TIMECRACKER COSMOS clock face features the planet Earth. On the hour the dial “cracks” apart, in a traditional time-cracker design, revealing even more splendor beneath! Experience the peace and tranquility of the cosmos! Clock is quartz battery operated. Automatic Night-time Shut Off. 2 “D” sized batteries are included! Clock measures 20.4 H x 16.7 W inches in diameter. The song list on this clock includes. Sonata fur Klavier K….