Introduction
Thank you for choosing the Xflyee 15-inch Backlight Digital Wall Clock. This clock is designed for convenience and accuracy, featuring automatic Bluetooth time synchronization, a large easy-to-read display with adjustable backlight, and multiple functions including alarm and timer. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance.
Package Contents
- Xflyee 15-inch Backlight Digital Wall Clock (Model 3039LY)
- 4 x AA Batteries
- User Manual (this document)
Product Features
- Automatic Bluetooth Time Synchronization: Pairs with your smartphone for precise time setting without manual adjustments.
- Large 15-inch Display: Features 4.5-inch digits for excellent readability from a distance.
- Adjustable Backlight: Three levels (Off, Low, High) for clear visibility in various lighting conditions, especially at night.
- Battery Operated: Powered by 4 AA batteries (included) for wireless placement.
- Low Battery Indicator: Alerts you when batteries need replacement.
- Multi-functionality: Includes alarm with snooze and timer functions.
- Automatic Daylight Saving Time (DST) Adjustment: Automatically updates for DST changes.
- Display Modes: Easily switch between 12/24-hour format and Celsius/Fahrenheit temperature display.
- Versatile Placement: Suitable for wall mounting or desktop use.
Setup
1. Battery Installation
Open the battery compartment cover on the back of the clock. Insert the 4 AA batteries, ensuring correct polarity (+/-). Close the battery compartment cover securely.
2. Initial Power On
Upon battery insertion, the clock will power on. The display will show a default time or begin searching for a Bluetooth signal for synchronization.
3. Bluetooth Time Synchronization
This clock features automatic time synchronization via Bluetooth. To set the time:
- Ensure Bluetooth is enabled on your smartphone.
- The clock will automatically attempt to pair with a nearby smartphone.
- Once paired, the clock will synchronize its time with your smartphone, typically within a few seconds. No manual time adjustment is required.

Image: The digital wall clock displaying time, day, and date, with a smartphone nearby showing a Bluetooth connection icon and synchronized time. This illustrates the automatic time syncing feature.

Image: A visual representation of the clock wirelessly connecting to a smartphone, highlighting the 'Never Needs Setting' aspect and automatic time syncing in just three seconds.
Operating Instructions
1. Backlight Adjustment
The clock features three backlight levels: Off, Low, and High. Use the slide switch located on the back of the clock to select your preferred brightness.
- Off: No backlight.
- Low: Suitable for daily use and subtle illumination in dark environments.
- High: Provides maximum brightness, ideal for users with poor eyesight or for very dark rooms.
Video: This video demonstrates how to use the slide switch on the back of the Xflyee Digital Wall Clock to adjust the backlight function between Off, Low, and High settings. It shows the visual difference in brightness on the clock's display.

Image: Two clocks are shown side-by-side, one labeled 'Night (Low light)' and the other 'Night (High light)', illustrating the difference in backlight intensity. A slide button adjustment is also depicted.

Image: The clock displayed in a room at night, showcasing its adjustable brightness backlight feature for easy reading in low light conditions. A slide button for adjustment is also visible.
2. Alarm Function
The clock includes an alarm function with three customizable modes:
- Everyday: Alarm sounds daily.
- Working Day: Alarm sounds Monday to Friday.
- Weekend: Alarm sounds Saturday and Sunday.
Refer to the buttons on the back of the clock for specific alarm setting controls. The clock also supports a snooze function.

Image: A person stretching in bed with the clock showing an alarm set for 7:00 AM. Below, three smaller clock displays illustrate the 'Everyday', 'Working Day', and 'Weekend' alarm mode settings.
3. Timer Function
The clock can be used as a countdown or count-up timer. Use the designated buttons on the back of the clock to activate and control the timer.

Image: Two clock displays showing the timer function. One shows 'Start Time: 0:00:00' and the other 'Countdown Time: 29:59:59', indicating the clock's ability to function as a timer.
4. Automatic Daylight Saving Time (DST) Adjustment
Once the automatic daylight saving time feature is enabled, the clock will automatically adjust its time at the start and end of daylight saving periods. No manual intervention is needed.

Image: The digital wall clock displaying time, day, and date, with an illustration of an analog clock showing time adjustment, signifying the automatic DST feature.
5. 12/24 Hour and Temperature Unit (°C/°F) Display
You can easily switch between 12-hour (AM/PM) and 24-hour (military) time formats, as well as Celsius (°C) and Fahrenheit (°F) for temperature display. Locate the '12/24' button and the '°C/°F' button on the back of the clock and press to toggle between options.

Image: Two clock displays illustrating the switch between 24-hour format (22:58 WED 27°C) and 12-hour format (10:58 PM WED 81°F), demonstrating the customizable display options.
Installation
1. Wall Mounting
The clock features integrated mounting holes on the back. Use appropriate screws (not included) to securely hang the clock on a wall.
2. Desktop Placement
The clock also includes a built-in stand, allowing it to be placed on any flat surface such as a desk, shelf, or nightstand.

Image: A split image showing the clock mounted on a wall and also standing on a desk, highlighting its versatility for both wall and desktop placement. The back of the clock with mounting holes and stand is also visible.
Battery Information & Maintenance
1. Low Battery Indicator
The clock is equipped with a low battery indicator on the display. When this indicator appears, it is time to replace the batteries to ensure continuous and accurate operation.

Image: The digital wall clock displaying time with a prominent low battery icon, indicating the need for battery replacement.
2. Memory Battery Function
The clock retains its settings and time during brief power outages or battery changes, thanks to its memory function. You will not need to reset the time after replacing batteries.

Image: A diagram showing the clock's memory battery function, illustrating that settings are retained even after a power outage or battery removal, preventing the need for a full reset.
3. Cleaning
Wipe the clock with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these may damage the display or casing.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock does not turn on. | Batteries are not inserted correctly or are depleted. | Check battery polarity. Replace with new AA batteries. |
| Time is incorrect or not syncing. | Bluetooth not enabled on smartphone, or clock is out of range. | Ensure Bluetooth is active on your smartphone. Move the clock closer to your smartphone during initial setup. |
| Backlight is not working. | Backlight switch is set to 'Off'. | Adjust the backlight slide switch on the back of the clock to 'Low' or 'High'. |
| Alarm does not sound. | Alarm is not set or is turned off. | Verify alarm settings and ensure it is activated for the desired days. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 3039LY |
| Dimensions | 14"W x 5.9"H |
| Display Type | Digital |
| Power Source | 4 AA Batteries (included) |
| Material | Plastic |
| Item Weight | 2.33 pounds (1.06 Kilograms) |
| Special Features | Adjustable Brightness, Alarm, Auto Dimmable, Bluetooth, Timer |
| Mounting Type | Wall Mount/Desktop |

Image: The digital wall clock with its dimensions clearly marked as 14.2 inches wide and 5.9 inches high, indicating its 15-inch display size.
Warranty and Support
This Xflyee Digital Wall Clock comes with a Lifetime Warranty. For any product inquiries, technical support, or warranty claims, please contact Xflyee customer service through the retailer's platform or the official Xflyee website.