Two Modes of Alarm Clock: Size: 8.8*5.3*2.8cm, high-definition large screen, bold characters, black large LCD numbers, digital alarm clock, two modes: normal time mode, alarm time mode, also includes countdown function, other Functions include: display time, date, 12/24 hour switch, luminous function, etc. Please install the battery before use. Alarm Clock and Snooze Function: In the alarm time mode, the alarm clock has 9 kinds of alarm music for you to choose, you can turn on the snooze function, only when "" and "zZ" are displayed, the alarm clock and snooze mode can be used. efficient. Turn off the "" and "zZ" signs through the "ADJ" key, press the "SET" key to stop the alarm or other keys to pause, the snooze interval duration (1-60 minutes). Luminous Function: The digital alarm clock has luminous function. Press the "LIGHT" button to turn on or off the night light, the light will automatically turn off after 5 seconds. When the alarm clock reaches the set time, it will sound for 1 minute, and the "LIGHT" will be on for 5 seconds. When the snooze interval is reached, it will sound twice, 1 minute each time, and the "LIGHT" will light on. 12/24 Hour System: In normal time mode, press the ADJ key to switch between 12/24 hour time system, all keys have key tone. You can put it in your bedroom, desk, kitchen, office or travel, allowing you to easily read the time without disturbing your sleep. Timer Function: In any time mode, press the "TIMER" button to enter the timer mode and set the countdown. The timing range is from 23:59 to 00:00. When the time is up, an alarm will sound. When the set time is reached, the alarm tone will sound for 1 minute, and "0:00" will flash continuously.