【Reliable Atomic Clocks】: Ensures exact time accuracy by syncing with the atomic clock via radio signals. 【Whisper-Quiet Movement】: Silent sweep second hand ensures a peaceful environment, making it perfect for quiet spaces like bedrooms or offices. 【Clear and Easy-to-Read Display】: Features a large, high-contrast dial with bold numbers for effortless readability from a distance. 【Easy to Set】: The time zone can be easily set with the switch. (There are 4 options available: PT-Pacific, MT-Mountain, CT-Central, ET-Eastern). Additionally, the daylight saving time can be manually set for added convenience. 【Operation Feature】: Easy operation with 1 AA alkaline battery (not included). This device has several features. It has reliable atomic clocks that ensure exact time accuracy by syncing with the atomic clock via radio signals. Its whisper-quiet movement with a silent sweep second hand creates a peaceful environment, suitable for quiet spaces like bedrooms or offices. The display is clear and easy to read, having a large, high-contrast dial with bold numbers for effortless readability from a distance. It's easy to set as the time zone can be set with the switch (with 4 options like PT-Pacific, MT-Mountain, CT-Central, ET-Eastern) and the daylight saving time can be manually set. Also, it's easy to operate with 1 AA alkaline battery (which is not included).