SEIKO QXM275BRH On the hour, the clock plays one of 6 Hi-Fi melodies plus an opening and closing melody with motion and fourteen colorful sparkling lights (LED); Features: Light sensor; Volume control; Glass crystal; Demonstration button; One way rotating pendulum; 28 Swarovski crystals; On/off switch; Four “D” batteries included; Dimensions 20 7/8″ x 15 1/4″ x 4 1/2″