ATOMIC DIGITAL CLOCK AUTO SET - Auto set and accurate time: The atomic desk clock automatically receives Colorado WWVB time signals, syncing time and date. It remains accurate to within one second as it receives daily updates. - Time zone options: Four time zones to choose between PST, MST, CST, EST. After the waveform icon flashes, it means that the RCC clock has ended the wave receiving mode. At this time, press the UP key to select the time zone. - Alarm with snooze: Built-in alarm to meet daily wake-up needs, with a snooze function. Alarm status is shown on the display for easy checking. In snooze mode, press any key except SNZ/LG to exit. - Backlight and power: Backlight can be lit for 10 seconds by pressing the SNZ/LG key. Powered by 3 AAA batteries (included). - Design and use fit: Modern full-screen clock design, making it a practical and thoughtful gift for loved ones. Use scenarios - Home bedside use: Rely on automatic time updates for accurate wake-up times, with a clear alarm and easy snooze control. - Office or workspace: Maintain correct local time across PST, MST, CST, and EST for coordinating with others, with a visible, easy-to-read display. - Dorm, travel, or secondary space: Battery operation provides portable convenience, and the backlight aids readability in low light.