Slim travel clock, easy to use. The clock has an optional hourly chime and an alarm function with a choice of three alarm sounds. The casing includes a cover which protects the display and buttons and also acts as a stand for the clock. The unit also has a belt clip. Size: 66mm (W) x 95mm(L) x 20mm(D) Powered by 2 x AAA Alkaline batteries (Not included).