Large Digital Display: 3'' LED Large Digital Display, Clear and Comfortable Visual Sense, it will auto dim during 10:00pm-6:00am. When plugged with USB cable, the LED light will be on always. By pressing the button of "SNOOZELIGHT" the display can keep lighting for 5 seconds. Quiet Sleeping Environment: Unlike Mechanical alarm clock that keeps ticking, affecting the quality of your sleep. We clock is quiet, allowing you to get rid of the noise of the night and sleep peacefully. Powered and Battery: This Bedside Clock includes a charging USB cable our smart clock for your convenience for powering, A built-in No.7 battery(not include) for saving your clock-settings in case of power outages; Time display support both 12hrs and 24 hrs format. Alarms with Snooze: Alarms make it possible to set two separate wake-up times. Snooze time can be set, do not need manually to turn off the alarm clock. Wake you at different times, make your life easy and more convenient. Stylish and Simple Design: Size:162.56 CM, Stylish and simple mini mirror alarm clock can decorate your bedroom, living room, also can be used as a mirror when needed.