Large LED Display: This Digital Alarm Clock features a 5.6inch large LED mirror display, making it 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 USB Powered and Battery Powered: This Bedside Clock includes a charging USB cable for your convenience for powering. When plugged with USB cable, the LED light will be on always. Built-in 1000mAh lithium_polymer battery, When battery power, the LED light won't be on always. the bedroom clock ensures long standby time after fully charged. Time display support both 12hrs and 24 hrs format. (Note: Please connect with the USB port or ONLY 5V/1A and 5V/2A adapter to charge the clock) Dual Alarms with Snooze: Dual 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 Adjustable Brightness: 4 Levels Adjustable Brightness. LED Large Digital Display, Clear and Comfortable Visual Sense, Automatically adjusts the appropriate brightness at different times of day. 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 Stylish and Simple Design: 14.56.53.2 CM (5.72.561.26Inch),The elegant and simple mini mirror alarm clock can decorate your bedroom, living room, and can be used as a mirror when needed