Multi -function Modes & DisplayThe digital desk clock has 3 workday alarm modes to choose: Monday to Friday / Monday to Saturday / Monday to Sunday.<br> LED Display & Adjustable BrightnessThis 6.5' digital alarm clock comes with large screen and large font. You can easily see the time even when you are not in front of the alarm clock. Simply press UP to adjust the 3 levels of brightness (Bright / Medium / Low).<br> Easy SnoozeYou can get 1~60 minutes of extra sleep by pressing the "SNOOZE" button, the default snooze time is 5 min. The alarm will last for 2 min until you turn off the snooze mode by pressing any other buttons.<br> Battery Power Supply & USB Power Supply The screen will not always be on when the AAA provides power instead of the plug mode. This bedroom alarm clock has a time memory function when powered by AAA batteries; When powered by USB alone, there is no memory function after power off. It will automatically turns off after 16 seconds of no operation and enters power saving mode, but the system still maintains the previous settings.<br> NOTEThe screen will not always be on when the AAA provides power instead of the plug mode.