When time is ticking, this clock's heart is beating! This motion clock gives the illusion of a beating heart by placing an overlay of stripes moving in a clockwise motion over a specially prepared image. You may be mesmerized -- what's not to like about this clock! White hour and minute hands contrast with the focal red heart and black overlay. Silent movement makes for a noise free timepiece in your home or office. Battery operated. Uses (1) one D battery (not included).