Large LED Display Digital Alarm Clock features a large 5.6-inch LED mirror display for easy reading. One of the best bedroom alarm clocks due to its simplicity, this premium digital clock is something you'll enjoy waking up to every morning. USB Powered This bedside clock includes a USB charging cable, our smart clock for your power sense, a built-in battery to back up your clock settings during power outages; Time display supports 12-hour and 24-hour formats. (Note: Connect with USB port or ONLY with 5V/1A and 5V/2A adapter to charge the alarm clock) Dual Alarm with Snooze Dual alarms allow you to set two separate wake-up times, Snooze time is adjustable, you don't need to manually turn off the alarm clock. Wakes you up at different times, makes your life simple and more convenient. Adjustable Brightness 4-level adjustable brightness. Large LED digital display, clear and comfortable visual feeling. It will automatically dim from 11 PM to 6:59 AM; the brightest from 7 AM to 6:59 PM; and medium brightness from 6:59 PM to 10:59 PM. When connected with a USB cable, the LED light will always be on. By pressing the "SNOOZE LIGHT" button, the display can be on for 5 seconds. Stylish and Simple Design 14.5×6.5×3.2 CM (5.7×2.56×1.26 inches), The stylish and simple mini mirror alarm clock can decorate your bedroom, living room, but can also be used as a mirror when needed.