【Large Digital Display】: 3'' LED Large Digital Display, Clear and Comfortable Visual Sense, it will auto dim during 6:00pm. When plugged with USB cable, the LED light will be on always. When the battery mode is used, the screen will automatically turn off in 10 seconds. You can voice-activate the screen, or press any key to turn on the screen. By pressing the button of "SNOOZELIGHT" the display can keep lighting for 5 seconds. 【Stylish and Simple Design】:Multifunction Digital Mirror Alarm Clock is designed as mirror style. With large digital display, integrate time display, alarm, snooze, temperature display, night mode and mirror. Bold fonts, easy to view. Stylish and simple mini mirror alarm clock can decorate your bedroom, living room, also can be used as a mirror when needed. 【Powered and Battery】: Alarm clocks can be powered by USB cable or 3 AAA batteries (not included). NOTE: If alarm clock is running via using battery, alarm clock lights 5 seconds then OFF, and you can activate the opening screen by clapping sound. Save energy and give you better sleeping at night. Clock will on all the time if via USB, Time display support both 12hrs and 24 hrs format. 【Simple Setting, Easy Use】: White minimalist rectangle digital clock with very simple 5 mains buttons settings, Can be set LED 2 level display brightness, you can see the time clearly in the night. Snooze time can be set, unless manually turn off the alarm clock. Wake you at different times, make your life easy and more convenient. 【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, 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.