LARGE LED DISPLAY AND MULTIFUNCTIONThe digital alarm clock with large LED display (6.3 "x0.7~1 "x2.36") 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 very simple so it is very easy to set up. ADJUSTABLE BRIGHTNESSSimply 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.Simply press and hold the snooze button for more than 3 seconds to turn off the display to prevent the screen from lighting up at night and interrupting sleep. 3 WORKDAY MODES AND SNOOZEThere are 3 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" buttonsto adjust the hour/minute/snooze time/workday mode. In addition, you can press the "SNOOZE" button when the alarm goes off to get 1~60 minutes extra sleep time or press any other key to cancel the alarm. SOUND CONTROLWhen 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. In addition, the LED alarm clockautomatically switches off the screen after 16 seconds of inactivity, saving power and making it easy to operate. 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 whenthe power is turned off.