?ALWAYS ON DISPLAY? Our backlit alarm clocks can be always illuminated with power cord plug-in. It provides adjustable 5-level brightness options of 100%, 60%, 30%, 5%, or off to ensure comfortable usage for your eyes. With built-in stand bracket and hanging hole that can be placed on the desk of the bedroom or hanging on the wall of the living room.It is also an ideal choice for birthday/festival gift for the elderly, parents, families, and friends. ?AC POWER & BATTERY BACKUP? Our digital self-setting alarm clock is primarily powered by the included AC adapter, but in case of power interruption, it is recommended to use the batteries simultaneously to ensure seamless use during power outages and store your time and alarm settings. Additionally, there are user-friendly 2 extra USB charging ports for charging cellphone and other electronic device. ?ALARM CLOCK & INDOOR THERMOMETER? We are dedicated to providing the ideal nightstand clock for users, our small atomic alarm clock with 5mins snooze function which is helpful for those who are hard to get up in the mornings. With the digital calendar function, it also can be an excellent wall/desk clock for offices, schools, and shops. Includes indoor temperature & humidity readings and trend arrows, which can provide a useful reference for you to adjust the thermostat. ?MULTI-FUNCTIONAL ATOMIC ALARM CLOCK? Our electric color atomic clock with vivid digits, adjustable backlight, and different colors for each function that can be easy to read the information during the day and night without causing any disturbance during sleep. It displays the time, date, day, and indoor temperature & humidity, and also offers real-time moon phases for those who track the lunar cycle. ?COLOR HD DISPLAY DIGITAL ATOMIC CLOCK? This auto-set color alarm clock is designed with large 6 inches clear HD display and big digits providing wide view angles. It has 7 time zones: EST, CST, MST, PST, AKT, HAT, and AST. By setting the time zone on the atomic alarm clock and leaving it plugged in overnight, it will automatically sync to the correct time during the night with the WWVB function on, while also self-updating for daylight saving time (DST).