Features:18 World Time citiesCircular World Time changer automatically adjusts the time when city is selectedPerpetual calendar with full month view and dateTemperature display:Select Centigrade or Fahrenheit scaleAlarm with 16 different wake up melodiesLED flashlight，3 bright white LED's12/24-hour format selectableCountdown timer functionTravel alarm clock with LED torchThis pocket size world time alarm clock is great for the traveller as well as being a useful all-round timepiece and alarm clock.Specification:Runs on 2 AAA batteries (not included)Unit Size: 5.2 x 1.5 x 1.5 inchLCD display size: 1.6 x 0.8 inch