Usage Tips:Large LED ScreenDigital alarm clock features a large 5.6 inch LED mirror screen for easy reading. One of the best alarm clocks for bedrooms because of its simplicity, this premium digital clock is something you'll enjoy waking up to every morning USB PoweredThis bedside clock includes a USB charging cable, our smart clock for your power convenience,A built-in battery to save your clock settings in case of power outage;Time display supporting 12 hour and 24 hour formats. (Note: Please connect with USB port or ONLY with 5V/1A and 5V/2A adapter to charge the alarm clock) Dual Alarm with Snooze Two alarms allow setting two separate wake-up times, Snooze time can be set, you don't need to manually turn off the alarm clock. Wake you up at different times, make your life easier and more convenient Adjustable BrightnessAdjustable brightness in 4 levels. Large LED digital display, clear and comfortable visual sense. It automatically dims from 11:00 pm-6:59 am; brightest from 7:00 am to 6:59 pm; and average brightness from 6:59 pm to 10:59 pm. When plugged in with a USB cable, the LED indicator will always be on. By pressing the "SNOOZELIGHT" button, the screen can stay on for 5 seconds. Elegant and Simple Design14.56.53.2 CM (5.72.561.26Inch),The mini Stylish and simple mirror alarm clock can decorate your bedroom, living room, but also can be used as a mirror when needed.