Rhythm # 4MH886WD02 We give you the Gadget. It reads the temperature, moisture, has motion, and it tells time. On the hour, the gears take move, meanwhile the dial takes a full revolution around while playing one of 30 melodies. Designed beautifully with a continuous rotating gear at the bottom and 6 Swarovski Crystals. Clock is battery quartz operated. Auto night shut-off Demonstration button Volume control ON/OFF switch Requires 2 D size batteries Dimensions : 16.1in H x 15.4in W Weight : 5.3 lbs.