Digiview RC304EL International Travel Clock Pocket-sized, atomic alarm clock that's perfect for travelers Displays time, month, date, weekday, and indoor temperature Dual alarms with snooze function and a blue backlighting display Calibrates nightly to the atomic clock source operated by the U.S. Commerce Department (WWVB 60kHZ radio transmission) Other atomic time radio signals are available in parts of Europe, Asia, and Japan