This small， desktop clock shows the time in easy to see digital numbers. The clock displays and speaks the clock time and temperature Fahrenheit. The hour number measures 1 1/2"; and the second numbers measures 1";. One push button on top of the clock to hear the announcement. Note: * Does not have a back-lite *Clock sets to 12 or 24 hour display. (24 hour display is Military Time).4 Works on batteries only. Features: * Language: English * Voice: Female * Color: White with Black ring * Clock Measures 5" x 3"x 1 1/4" * Requires: 2-AA batteries not included