The Gadget by Rhythm is a multi-function clock that has a Thermometer to read the temperature, a hygrometer to tell you the moisture in the room, in addition to telling time. The clock plays one of 30 different melodies on the hour while the dial rotates completely around the face and the gears move around. The light bronze gear at the six position constantly revolves. The light sensor that is located under the number 11 turns the melodies off when the room is dark. The clock also features 6 Blue Swarovski Crystals, volume control, and a melody on / off button. The Gadget has a Quartz movement that requires 2 size D batteries (included). The songs are seperated into 3 banks of melodies. Two banks of 12 classical melodies each, and one bank of 6 Christmas songs.