NIP Sharp SPC1107A Black Digital Atomic Wall Clock Weather Station w/ Jumbo Display Add a touch of modern style to your home with this Sharp SPC1107A digital atomic wall clock. With a jumbo display and atomic movement, this clock is accurate and easy to read from a distance. The clock is powered by batteries, making it a convenient addition to any room in the house. The clock features a black color and is made of durable materials such as glass and plastic, ensuring that it will last for years to come. 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. Wireless Outdoor Sensor: The Wireless outdoor sensor (included) transmits the outdoor temperature to the Atomic Wall Clock. The sensor can be placed anywhere within 100ft of the receiving unit. The wireless technology means no wire installation is necessary. Note: The wireless sensor is included in the box, separate from the clock. Jumbo 3” Tall LCD Time Display - Easy to Read, 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 indoor and outdoor temperature - Displays calendar and day of week Battery powered: Main unit 3 x AA batteries - Sensor 2 x AAA batteries (not included)