Marathon Atomic Travel Alarm Clock with Auto Back Light Feature, Calendar and Temperature. Folds into One Compact Unit for Travel. Batteries Included. Color-White. SKU-CL030036WH SELF-SETTING/ADJUSTING - Using radio frequencies broadcast from NIST's Colorado Atomic Clock MULTIPLE TIME ZONES: You can easily switch between 6 time zones (Pacific, Mountain, Central, Eastern, Atlantic & Newfoundland) MULTIPLE LANGUAGES: Choose from 5 languages (English, French, German, Italian & Spanish) AUTOMATIC BACKLIGHT: Uses a built in light sensor to detect if the clock has been placed in a dark environment, the backlight can also be manually operated COMPACT SIZE: Measuring in at 3.25" x 0.5" x 2.75", our atomic clock is great for travel