Compatible with Sharp Digital Wall Clock, Self-Setting Atomic Desk Clock with Temperature, Humidity and Date, Battery Operated Digital Clock Large Display, Bronze Woodgrain finish with Gold Bronze Accents. Atomic Accuracy: The Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within one second as it receives daily WWVB updates. Displays Indoor Temperature and Indoor Humidity. Easy to Read 1.65” Tall LCD Time Display - Easy to See, Easy to Use, Easy to Set up - Use as either a wall clock, or as a desk clock with integrated stand. Perfect for anyplace in your home. Displays calendar and day of week – Shows month and date and day of the week for easy viewing at a glance. Battery powered: Requires 2 x AA batteries (not included). (SPC1019CEAMZ) Atomic Accuracy: The Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within one second as it receives daily WWVB updates. Displays Indoor Temperature and Indoor Humidity Easy to Read 1.65” Tall LCD Time Display - Easy to See, Easy to Use, Easy to Set up - Use as either a wall clock, or as a desk clock with integrated stand. Perfect for anyplace in your home. Displays calendar and day of week – Shows month and date and day of the week for easy viewing at a glance Battery powered: Requires 2 x AA batteries (not included)