Features & details EASY TO SET: 5 simple steps and wait for the correct time to set (for more details, check the 4th "Product Image" on left or “Product Description” below).SELF-SETTING W/ 6 TIMEZONES: Atomic clock receives radio time signals from Colorado and updates itself with accurate time and date. 6 timezones (P/ M/ C/ E/ H/ A) selectable.BATTERY OPERATED: hito large digital bedside/ wall clock works with 2x C Cell batteries.GLOW IN THE DARK: hito atomic alarm clock wall clock features an light sensor which activates soft ambient backlight when it is dark. Two brightness options for this auto night light: L1< L2.INDOOR TEMPERATURE & HUMIDITY: This clock also displays indoor temperature (Fahrenheit/ Celsius) and indoor humidity. DUAL ALARM: You can set two different alarms as needed. Alarm status also shows on the display for easy check.