This digital alarm clock features a user-friendly design. It boasts a 3.3-inch display, palm size. Ideal for a bedside table, desk, or kitchen, it's especially suitable for teenagers. It's simple to use. Simply press and hold the "MODE" button to quickly switch between time, alarm, countdown, and alarm modes. In the corresponding mode, press "HOUR," "MIN," and "SEC" to set the hour, minute, and second respectively. Press the "ST/SP" button to enable or disable the function. When the countdown is in use, the screen will display "COUNT_UP," and when the countdown is in use, the screen will display "TIMER." Pressing both "MIN" and "SEC" will reset the timer to 00:00:00. It's very easy to use and perfect for students doing exercises and foodies who enjoy cooking. Note: 1. You can switch the back to select the reminder mode. The leftmost and rightmost switches are for silent mode, while the middle switch is for “beep beep beep" reminder. 2. This alarm clock can be set to 12/24-hour display mode, and you can also manually set daylight saving time and standard time. 3. Please remove the screen protector before use to ensure screen clarity.