Digital Clock Large Display: This digital alarm clock features a large 3-inch LED mirror display, making it 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. The LED display is crisp and modern, just like the mirrored display, and displays the time and temperature, easy to read. Adjustable Brightness Clear and comfortable visual sense, it will automatically dim at 6:00 PM. When plugged in with a USB cable, the LED indicator will always be on. When using battery mode, the display will automatically turn off in 10 seconds. You can activate the display by voice or press any key to turn on the display. Press and hold "LIGHT / SNOOZE" in any mode for 3 seconds to turn off the screen. USB Alarm Clock & Extra Storage Battery This bedside clock includes a charging USB cable, our smart clock for your power convenience,A built-in button battery to save your clock settings in case of a power outage.Note: There is no battery inside the product, you need to buy it yourselfBattery mode makes your alarm clock easy to carry and convenient for travel. Snooze Function Dual alarm allows you to set two separate wake-up times. The snooze time can be set, you don't need to manually turn off the alarm clock. Wake up at different times, make your life easier and more convenient. When you wake up in the middle of the night, you can use this alarm clock to light up and prevent you from bumping into things because of the dark night. Best Gift & Satisfied Service Size: 16 2.5 6 CM, stylish and simple mini mirror alarm clock can decorate your bedroom, living room, can also be used as a mirror if necessary. The alarm clock is the perfect gift for your family and friends. If you have any problems, please feel free to contact us at any time. We will solve the problem as soon as possible.