1. 【LED DISPLAY AND MULTIFUNCTION】The digital alarm clock with LED display allows you to check the time at a glance, even if it is far away from you. Our smart clock has 5 modes: clock mode, date mode, temperature mode, night mode (on/off) and alarm mode. The buttons on the back are simple so it is easy to set up. 2. 【ADJUSTABLE BRIGHTNESS】Simply press the up/down button to adjust three levels of brightness (bright/medium/low). In addition, in night mode, the bedside alarm will automatically dim from 18:00-6:00, or you can set another time period to suit your needs. 3. 【 WORKDAY MODES AND SNOOZE】There are alarm clock modes to choose from when you want it to wake you up at a fixed time. Monday to Friday / Monday to Saturday / Monday to Sunday. Simply press and hold "ALARM" and then use the "UP" and "DOWN" buttons to adjust the hour/minute/snooze time/workday mode. 4. 【SOUND CONTROL】When powered by batteries you get an extra feature - voice control, which means you can activate the display screen by making some sounds such as clapping your hands, tapping the table or touching the clock. 5. 【USB OR BATTERY POWERED】 Digital clock comes with the USB cable (included) and 3 AAA batteries (not included), this LED alarm clock has two power sources which is convenient and useful. Also important for you to note is that it loses its time memory when the power is turned off.