Large Display & Multi-function: The digital alarm clock comes with a large LED display (6.3" x 0.7~1" x 2.36"), allowing you to check the time at a glance even if it's far away from you. Our desk clock has 5 modes: Clock Mode, Date Mode, DST Mode, Night Mode (On/Off), Alarm Mode. The buttons on the back are very intuitive, so it's very easy to set up! Adjustable Brightness: Simply press UP/DOWN to adjust the 3 brightness levels (Bright/Medium/Low/Extra Low/Off). In addition, in night mode, the digital alarm clock will automatically dim during 19:00-7:00 (the time of night mode is fixed and not adjustable). The alarm screen will automatically turn off after 10 seconds and light up by pressing any key. (Note: If you use the cable for power, the clock will always be on.) Weekday Mode & Snooze: Our digital desk clock has 4 alarm modes, you can choose to wake you up at a fixed time: Monday to Friday / Monday to Saturday / Monday to Sunday / Saturday to Sunday. Just long press "ALARM", then use the "UP" and "DOWN" buttons to adjust the hour/minute/snooze time/weekday mode. In addition, when the alarm goes off, press the "SNOOZE" button to get 9 minutes of extra sleep, or press any other key to cancel the alarm DST Function & Power Saving Mode: When powered by battery, the LED alarm will automatically turn off and enter power saving mode after 10 seconds of no operation, saving battery life and ensuring uninterrupted use, but the system still keeps normal timekeeping and keeps the previous settings. At the same time, the built-in DST function automatically adjusts the time without manual intervention