This Digital Calendar Clock features large digits on its LCD face that very clearly shows the time, day of week, date and month as well as showing room temperature, in a very easy to read display that is ideal for use with impaired vision.The Digital Calendar Clock uses the Atomic Radio Signal to automatically sets itself to the correct time and then remains accurate by receiving the radio time signal. This feature also allows the clock to automatically adjust itself to Summer/Winter time. This radio controlled clock has a built-in stand, making it ideal for a bedside table or similar, but can also be wall mounted if desired. This clock requires 2 x AA batteries to operate (not included).