Vienna-style metal dial with arabic numerals Fully lyre pendulum Choice of 3 chiming options: Harmonic 2 triple-chime movement plays your choice of Westminister, Ave Maria, or Bim-Bam melody every hour and 4/4 quarter-hour Westminister chime and strike also available Volume control-allows you to adjust chiming volume to your liking Automatic night shutoff switch Operates with (1) AA battery and (2) C batteries ( Not included)