Recordable Chime with 16″ Pendulum, Whatever 10 second sound you record will play every hour on the hour. The has a built in microphone and a 1/8" jack has to be heard to be believed! We started off by permanently programming an hour only Westminster and Whittington chime with hour count, then giving it a remote 2" speaker for good sound quality, and an increased the volume level so that this is now the loudest chime movement we have. The recordable chime feature is totally unique. Whatever 10 second sound you record will play every hour on the hour. The has a built in microphone and a 1/8" jack if you would like to use a higher quality microphone for your recording, or patch into another device The connecting wires are 12" long. Movement Dimensions: 5 1/2" H x 2 3/8" W x 1 1/4" D Chime Module Dimensions: 3-1/4" H x 2-7/16" W x 1-1/2" D w/1/2" threaded shaft & 13/16" overall shaft For Dials up to 7/16" thick American "I" Shaft-5/16" Diameter Operates on 4 "AA" cells (not included) 1 Year Guarantee Allows You To Record A 10 Second Custom Chime Price includes movement and a free adjustable pendulum rod with a 2-3/4" bob, mounting hardware and choice of free hour and minute hands. Sorry bob size cannot be substituted.