1. Introduction
Thank you for purchasing the Derkiewn Digital Alarm Clock. This manual provides detailed instructions for setting up, operating, and maintaining your new alarm clock. Please read this manual thoroughly before use to ensure proper functionality and to maximize your product experience.

Figure 1.1: Derkiewn Digital Alarm Clock with green LED display.
2. Product Overview
2.1 Key Features
- Large 7-inch LED Mirror Display: Provides clear time visibility and can be used as a makeup mirror.
- Multifunctionality: Displays time (12H/24H format), temperature (°C), and date.
- Snooze Function: Allows for an adjustable snooze interval from 1 to 60 minutes (default 5 minutes).
- Adjustable Brightness: Two levels of brightness (manual/auto) to suit day and night viewing.
- USB Powered: Connects to any USB port for continuous display.
- Memory Function: Retains settings during power outages with 3 AAA batteries (not included).
2.2 Components
The package includes the Derkiewn Digital Alarm Clock and a USB power cable. Please ensure all components are present upon unboxing.

Figure 2.1: Package contents including the alarm clock, USB cable, and user manual.

Figure 2.2: Top view of the alarm clock with button labels (MODE, ALARM, SNZ/LIGHT, UP, DOWN) and dimensions.
3. Setup
3.1 Power Supply
The alarm clock can be powered in two ways:
- USB Power (Recommended): Connect the included USB cable to the clock's power input port and plug the other end into any standard USB power adapter (not included) or USB port. When powered by USB, the display will remain continuously on.
- Battery Power (Memory Function Only): For memory function and temporary display, insert 3 AAA batteries (not included) into the battery compartment on the back of the clock. In battery-only mode, the display will enter power-saving mode and turn off after 16 seconds. Press any button to reactivate the display.

Figure 3.1: Powering options: USB charging mode for continuous display and battery powered mode for memory function.
3.2 Initial Time Setting
- Press the MODE button once to enter time setting mode. The hour digits will flash.
- Use the UP or DOWN buttons to adjust the hour.
- Press MODE again to set the minutes. The minute digits will flash.
- Use the UP or DOWN buttons to adjust the minutes.
- Press MODE a third time to confirm and exit time setting.
4. Operating Instructions
4.1 12/24 Hour Format
In normal time display mode, press the UP button to switch between 12-hour and 24-hour formats.

Figure 4.1: Display showing time in 12-hour and 24-hour formats.
4.2 Alarm Setting
- Press the ALARM button once. The alarm hour digits will flash.
- Use the UP or DOWN buttons to adjust the alarm hour.
- Press ALARM again to set the alarm minutes. The minute digits will flash.
- Use the UP or DOWN buttons to adjust the alarm minutes.
- Press ALARM a third time to confirm and activate the alarm. An alarm icon will appear on the display.
- To deactivate the alarm, press the ALARM button until the alarm icon disappears.
4.3 Snooze Function
When the alarm sounds, press the large SNZ/LIGHT button on top of the clock to activate the snooze function. The alarm will pause for 5 minutes (default) and sound again. You can adjust the snooze interval from 1 to 60 minutes by pressing the MODE button during snooze mode and using UP/DOWN to set the desired duration.

Figure 4.2: Using the snooze function on the alarm clock.
4.4 Brightness Adjustment
The clock offers 2 levels of brightness. Press the SNZ/LIGHT button (short press) to cycle through the brightness levels. The clock also features an automatic dimming function, where the display will automatically dim between 6:00 PM and 6:00 AM (default setting) to protect your eyes and save energy. This automatic dimming period can be adjusted.

Figure 4.3: Demonstrating the two adjustable brightness levels of the display.
4.5 Temperature and Date Display
In normal time display mode, press the MODE button repeatedly to cycle through Time, Date, and Temperature display modes.
5. Maintenance
To ensure the longevity and optimal performance of your Derkiewn Digital Alarm Clock, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the display and body of the clock. Avoid using abrasive cleaners or solvents, as they may damage the mirror surface or casing.
- Battery Replacement: If using batteries for memory function, replace them when the display becomes dim or settings are no longer retained during power outages. Ensure correct polarity when inserting new batteries.
- Placement: Place the clock on a stable, flat surface away from direct sunlight, extreme temperatures, and high humidity.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is off or dim. | Running on battery power (power-saving mode) or low batteries. | Press any button to activate display in battery mode. Connect to USB power for continuous display. Replace AAA batteries if low. |
| Cannot set time/alarm. | Incorrect button sequence or not in setting mode. | Refer to Section 3.2 and 4.2 for detailed setting instructions. Ensure you are pressing the correct MODE/ALARM button. |
| Settings are lost after power outage. | No backup batteries installed or batteries are dead. | Install 3 new AAA batteries (not included) for memory function. |
| Snooze function not working. | Alarm not active or incorrect button pressed. | Ensure the alarm is set and active. Press the large SNZ/LIGHT button when the alarm sounds. |
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | AR01 |
| Display Type | Digital LED Mirror |
| Screen Size | 7 inches |
| Product Dimensions | 2 x 3.81 x 7 cm (0.79 x 1.5 x 2.76 inches) |
| Product Weight | 160 grams (0.35 lbs) |
| Power Source | USB Powered (DC 5V) |
| Backup Battery Type | 3 x AAA batteries (not included) |
| Special Features | Snooze, Temperature, Date, Adjustable Brightness, Memory Function |
8. Warranty and Support
Derkiewn is committed to providing high-quality products. For any questions, concerns, or technical support regarding your Digital Alarm Clock, please contact our customer service. Please refer to your purchase documentation for specific warranty details and contact information.
For further assistance, you may visit the product page on Amazon.it or contact the seller directly.





