The MARATHON Travel and Desktop Alarm Clock is a compact size of 4 W X 0.5 D X 2.25 H inches, making it a perfect travel clock. Featuring a rotating stand, the MARATHON Travel and Desktop Alarm Clock can be folded into a compact case for ease of travel. When you have reached your destination, the MARATHON Travel and Desktop Alarm Clock stand can be flipped and rotated 180 degrees to sit stable on flat surfaces. While keeping size compact, Marathon has not compromised any functionality of the Travel and Desktop Alarm Clock. This clock displays; time in 12 or 24 hour formats, indoor temperature with options for Fahrenheit or Celsius, and a calendar display for day, date and month. Included with the MARATHON Travel and Desktop Alarm Clock is an ergonomic one touch back light function. Press the button to activate the back light. The MARATHON Travel Clock includes 1 AAA battery and its low power consumption ensures a maximum lifespan.