clock receives radio time signals from Colorado and updates itself with accurate time and date. 7 timezones (PST,MST,CST,EST,ASTTTING,HAT,AKT) selectable. Updating daylight saving time automatically. The digital clock equipped with 7.5 inch screen, making you can read the time, date, day, indoor temperature value clearly. Clock can be hung on the wall or stood on the table. The bedside/wall clock works with 2 x AA Cell batteries(NOT Included). It's equipped with back set buttons for Alarm, Snooze and Mode Options, simple to operate without instructions. 5 minutes snooze alarm time. Press any keys can cancel snooze when in snooze mode. 12 or 24 Hour Display Formats With Temperature Display In Celsius or Fahrenheit. Makes for an perfect gift for friends, family, colleagues, Elderly, Dementia, Alzheimer and Memory Loss. Size: 23.5*16.5cm Color: silver + gray Material: ABS<br><br>Package contents: 1* alarm clock 1* English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.