Ⅰ. 【Large LED Display】The digital alarm clock has a large 5.6 inch LED mirror display for easy reading. This digital clock is for the bedroom because of its simplicity - you will hear it every morning when you wake up. Ⅱ. 【USB Powered】This bedside clock comes with a USB charging cable, the clock provides you with the convenience of power supply, the built-in battery can save your clock settings in case of power failure; the time display supports 12 and 24 hour formats. (Note: Please connect to a USB port to charge the alarm clock or use only 5V/1A and 5V/2A adapters). Ⅲ. 【Dual Alarm Clock with Snooze Function】The dual alarm clock allows you to set two separate wake-up times, you can set a snooze time, you don't need to manually turn off the alarm clock. Wake you up at different times, making your life easier and more convenient. Ⅳ. 【Adjustable Brightness】 4 levels of adjustable brightness. Large LED digital display, clear and comfortable vision. Automatically dims from 12:00 to 6:59; brightest from 7:00 to 18:59; medium brightness from 18:59 to 23:59. When connected with a USB cable, the LED indicator will remain on. The screen can remain on for 5 seconds by pressing the "SNOOZELIGHT" button. Ⅴ. 【Simple Design】 14.5 × 6.5 × 3.2 cm (5.7 × 2.56 × 1.26 inches), the simple mini mirror alarm clock can decorate your bedroom, living room, and can be used as a mirror when needed.