If you're going to buy a clock, why not purchase one that keeps perfect time, all the time? This sleek, oval radio-controlled alarm clock with a bright blue LED display keeps you absolutely on schedule, because it receives a radio signal from the U.S. Atomic Clock in Colorado that gives time that's accurate to 10 billionths of a second.In addition to the world's most accurate time, you get a desktop timepiece with contemporary styling and sleek good looks--and much more. Our titanium oval atomic clock with indoor temperature reading is a lightweight digital timekeeper--and its silvery contemporary design fits into any décor. The clockface stays dark until you press the top, then an eye-pleasing blue backlight turns on for three seconds--just enough for you to see the time. (It saves dramatically on battery use, and you don't have a big blue "eye" staring at you all night.)  In addition to the room temperature in Fahrenheit or Celsius, there is a desktop calendar that features the month, day, date and year; the choice of standard or military time and an alarm with 10-minute snooze. A dial on the side is a handy feature; it makes setting the alarm an easy and precise method of choosing the exact time you want to wake up. (Unlike some alarm clocks, which make it difficult to differentiate between "AM" and "PM" time, this one won't surprise you by alerting you at 12 midnight rather than 12 in the afternoon.) There's no mystery to setting up the atomic clock--it's easy! After you've put your batteries in, the antenna icon will "search" the airwaves for the correct time; and when it stops waving, it means you're in tune with the Atomic Clock.) Uses 2 AA batteries (not included.