Stay on schedule with this alarm clock. The 4" Seiko Alarm Clock features a colorful case with a plastic cover. The beep alarm comes complete with a light, snooze function, the quiet-sweep second hand eliminates ticking, and luminous hands. Perfect for any space. Powered by 1 AA battery (included). Overall dimensions: 3.9 X 4.4 X 1.8 inches. The quartz crystal movement allows for superior accuracy.