Large LED Display;Snooze function: This Digital Alarm Clock features a 6.7 inch large LED display, making it easy to read, Ultra-thin body; 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. Snooze button helps you to easily turn off the alarm ring without opening eyes. Can set 1-60 Minute's Snooze Time (The default Snooze time is 5 minutes). Adjustable Brightness: 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. Press and hold "LIGHT/SNOOZE" in any mode for 3 seconds to turn off the screen. Powered by USB or 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.