Usage Tips:Large LED ScreenOur alarm clock has a large 5.6 inch LED mirror screen which is easy to read. one of the best alarm clocks for bedrooms due to its simplicity, this premium digital clock is something you'll enjoy waking up to every morning Built-in, USB-powered backup battery we already have included USB charging cable, our smart clock for your power supply convenience, built-in coin cell battery to save your clock settings in case of power failure; Time display supporting 12-hour and 24-hour formats Dual Alarm with SnoozeDual alarms allow two separate alarm clocks to be set. Snooze time can be set, you don't need to manually turn off the alarm clock. Wake up at different times, make your life easier and more convenient Adjustable brightness4 level adjustable brightness. Large LED digital display, clear and comfortable visual sense, it will automatically shut down between 10:00 p.m. and 6:00 a.m. When plugged in with a USB cable, the LED light will always be on. By pressing the "SNOOZELIGHT" button, the screen can stay on for 5 seconds Stylish and simple designSize: 14.5 6.5 3.2 CM (5.7 2.56 1.26 Inch), stylish and simple mini mirror alarm clock can decorate your bedroom, living room, but also can be used as mirror if necessary.