Large display; Multifunction: Digital alarm clock with large LED display (6.3\"x0.7~1\"x2.36\"), allowing you to check the time clearly at a glance even if it is far away from you. Our smart clock with 5 modes: clock mode, date mode, temperature mode, night mode (ON/OFF), alarm mode. The buttons on the back are very self-explanatory, so it is very easy to set! Adjustable brightness: Just press UP/DOWN to adjust the three brightness levels (High/Medium/Low). In addition, the bedside alarm clock will automatically dim during 6:00 PM-6:00 AM in night mode, or you can set other time periods as needed. Just 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 disturbing your sleep. Weekday mode and snooze: There are 3 alarm 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. Just long press \"ALARM\" and then use \"UP\" and \"DOWN\" buttons to adjust the hour/minute/snooze time/workday mode. What's more, you can get 1~60 minutes of extra sleep by pressing the \"SNOOZE\" button when the alarm goes off, or press any other button to cancel the alarm. Voice Control: When powered by battery, you can get an extra function - voice control, which means you can activate the display by making some sound like clapping your hands, tapping the table or touching the clock. What's more, the LED alarm clock will automatically turn off after 16 seconds of inactivity. And you need to be aware that it will lose the time memory when the power is off. USB/Battery Powered: With a USB cable (included) and 3 AAA batteries (excluded), this LED alarm clock has two power sources, which is convenient and useful. ★NOTE: This The product is LED light, it is recommended to be plugged in, and constant light cannot be guaranteed when using batteries. You can choose to use USB to charge if you want the alarm screen to always be on.