Features: 1. Large screen: The alarm clock has 6.3 inch LED screen, provides clear time display. Time, day of the week on the same screen, temperature, DST. 2. 12/24H system: switch according to your habit. 3. 2 display modes: always display time, time-date-temperature cycle display. 4. Free to choose whether the two-dot colon between clock minutes flashes or not 5. 2 groups of alarm clocks individually controlled 6. snooze function: default 5 minutes (5-60 minutes adjustable) 7. multiple alarm modes (1-1; 1-5; 1-6; 1-7; 6-7) 8. 4 levels of brightness manual adjustment, 2 levels of volume (55db, 95db) 9. 2 power supply modes: 3AAA dry battery power supply, type-c data cable power supply 10. Night Brightness Mode, automatically dims at night (19:00-22:59, 23:00-06:59) when turned on. 11. 2 output ports: 1 USB port, 1 type-c port, can power other devices. Package: 1* Alarm clock 1* 1.5m Type-C data cable 1* Instruction manual2 Power Modes: The alarm clock can be powered by 3AAA batteries and type-c cable. When powered by battery, it is in power saving mode that the screen will turn off in 8 seconds of no operation, and press any key to light up. The digital clock comes with a 1.5 meter cable. The screen is always on when powered by the cable. It is recommended to use the data cable to supply power. In addition, there are 1 USB port and 1 type-c port on the side for charging other devices. 4-Level Brightness & Night Mode: There are 4 levles brightness manual adjustment. Press the "DIMMER" button to adjust the brightness. In addition, this alarm clocks for bedroom also has a night mode, the time of the night mode is from 19:00 to 7:00. In this time period, the screen will be dimmed automatically. Long press the "DIMMER" button to turn on or off the night mode. 2 Display Modes &12/24H: The led bedside alarm clock has two time display modes (dp1: always display time, dp2: time-date-temperature cycle display). Long press "DP1/DP2" button for 3 seconds to switch modes. You can choose 12-hour or 24-hour format according to your habits. Simply press the "TIME SET" button to switch. Dual Alarm Clocks: This alarm clock for heavy sleeper has 2 groups of individually controlled alarm clocks, which is convenient for family members with different work schedules or different alarm purposes. The alarm clock has a snooze function, the default snooze time is 5 minutes, you can also adjust the snooze time. The alarm clock has multiple alarm modes (1-1; 1-5; 1-6; 1-7; 6-7). There are two levels of volume which are 55dB and 95dB. We recommend using 95 dB. Large Display & Multi-functions: The JXTZ alarm clock has a large 6.3-inch LED mirror screen with multiple functions: time and day of the week displayed on the screen, 12/24 hours switching, date, temperature function (?/°F switching), DST function. The colon between the clock minutes can be selected to blink or not. Long press "-" button for 6 seconds to turn off the blinking colon.