[Multifunction Display and Night Mode] This desk clock supports setting the time, date, day of the week, 12/24H format, and Daylight Saving Time mode. Press and hold the DIMMER button for 3 seconds to enter the night mode, the brightness will automatically dim between PM7:00 and AM7:00. [Double Alarms and Volume Control] This digital clock has 2 sets of independent alarms, 4 alarm modes: MON-FRI/MON-SAT/MON-SUN/SAT-SUN and 3 adjustable levels of alarm volume to ensure you catch every important moment. The default snooze time is 9 minutes. [USB Charging Ports] This bedroom alarm clock provides 2 separate USB ports that allow you to charge your device, which eliminates the hassle of having to use a lot of power adapters. All in all, suitable for everyone. [Large Numbers and Adjustable Brightness] This alarm clock adopts a large LED display, so you can easily read the large numbers anywhere in the room. 5 levels of adjustable brightness: 100%, 60%, 30%, 3%, 0%, easy to watch at night, auto-dimming mode at night, not disturbing sleep. [C-Type Charging and Power Saving Mode] This digital alarm clock is equipped with a C-Type charging cable for long-term use (mains power) (adapter not included). In the power saving mode (only when powered by the battery), the colon between the hour and minute will not flash and the screen will turn off after 10 seconds of non-operation. NOTE: The light will only come on when plugged in. If you use batteries, the light will not stay on.