1. Introduction
Thank you for choosing the Xflyee 18 Inch Oversized Digital Wall Clock. This multi-functional device provides clear time display, temperature, humidity, date, and day of the week, all easily viewable from a distance. It features automatic dimming, multiple brightness levels, and convenient remote control operation. Please read this manual thoroughly before use to ensure proper setup and optimal performance.
2. Package Contents
- Xflyee 18 Inch Oversized Digital Wall Clock
- Remote Control
- Power Adapter and Cord
- 2 x AAA Batteries (for memory function)
- Mounting Template
- Instruction Manual
3. Product Overview
The Xflyee Digital Wall Clock features an 18-inch HD screen with large, bold 5.9-inch digits for excellent visibility. It displays time, temperature, humidity, date, and day of the week. The clock can be used as a wall-mounted unit or placed on a desk using its integrated folding stand.

Figure 3.1: Overview of the clock's dimensions, showing the 16.9-inch width, 7-inch height, and 1.4-inch depth, with 5.9-inch main digits.

Figure 3.2: The large digital display of the clock, showcasing time, temperature, humidity, and date/day of the week for easy readability.
4. Setup
4.1 Powering the Clock
- Insert the 2 AAA batteries (included) into the battery compartment on the back of the clock. These batteries activate the memory function, preserving time and alarm settings during power interruptions.
- Connect the power adapter to the clock's power input port.
- Plug the power adapter into a standard electrical outlet. The clock is designed for plug-in use and does not support charging or continuous operation on batteries alone.

Figure 4.1: Illustration of the clock's memory function, showing how 2 AAA batteries (included) ensure settings are retained during power outages.
4.2 Mounting Options
The clock offers versatile placement options:
- Desk Placement: Utilize the integrated folding stand on the back of the clock to place it securely on any flat surface, such as a desk or table.
- Wall Mounting: The clock features two hanging holes for easy wall installation. Use the provided mounting template to mark the precise locations for screws on your wall.

Figure 4.2: The back of the clock showing the mounting holes and the remote control for easy setup and adjustment.
5. Operating Instructions
The clock can be operated using the buttons on its side/back or the included wireless remote control.
5.1 Setting Time and Date
Use the 'SET' button on the remote or the side of the clock to enter setting mode. Use the directional buttons (or +/- on the remote) to adjust values for year, month, day, hour, and minute. Press 'SET' again to confirm each selection and move to the next setting.
5.2 12/24 Hour Display
Toggle between 12-hour and 24-hour time formats using the dedicated button on the remote control or the corresponding button on the clock's side.
5.3 Temperature and Humidity Display
The clock displays both temperature and humidity. You can switch the temperature unit between Celsius (°C) and Fahrenheit (°F) using the C/F button on the remote control or the side of the clock.

Figure 5.1: Close-up of the clock's display showing temperature and humidity readings.
5.4 Auto-Dimming and Brightness Adjustment
The clock features a built-in sensitive light sensor that automatically adjusts display brightness based on ambient light. You can also manually select from 4 brightness levels (including full black) using the remote control or the brightness adjustment switch on the back of the clock.

Figure 5.2: Visual representation of the four adjustable brightness levels and the auto-dimming feature.
5.5 Daylight Saving Time (DST)
Activate the Auto DST function to automatically adjust the time one hour forward or backward as required by Daylight Saving Time. This eliminates the need for manual adjustments.

Figure 5.3: The clock displaying the Auto DST function, which automatically adjusts time for daylight saving.
5.6 Alarm Function
The clock supports alarm settings. Use the 'ALARM SET' button on the remote or the side of the clock to configure your desired alarm time. You can set multiple alarm modes (e.g., everyday, working day, weekend).
5.7 Timer Function
Press the 'MODE' button to switch to the digital timer mode. The clock supports both stopwatch (count-up) and countdown timer functions. Use the 'HR', 'MIN', 'SEC' buttons on the remote to set the timer, and 'TIMER ST/SP' to start/stop.

Figure 5.4: The clock showcasing its various functions, including humidity, calendar, timer, alarm, remote control, auto dimmer, temperature, and 12/24 hour display.
6. Maintenance
- Keep the clock clean by wiping it with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Ensure the power cord is not kinked or damaged.
- Replace the 2 AAA batteries for the memory function annually or as needed to ensure settings are retained during power outages.
7. Troubleshooting
- Display is blank: Ensure the power adapter is securely plugged into both the clock and a working electrical outlet. Check if the brightness is set to 'OFF' or the lowest level.
- Settings are lost after power outage: Verify that 2 AAA batteries are correctly installed in the battery compartment. Replace old batteries if necessary.
- Remote control not working: Check if the remote control batteries are depleted and replace them if needed. Ensure there are no obstructions between the remote and the clock.
- Incorrect time/date: Re-enter setting mode using the 'SET' button and adjust the time/date manually. Ensure Auto DST is correctly configured if desired.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Xflyee |
| Model Number | 099 |
| Display Type | Digital |
| Size | 18 Inch |
| Product Dimensions | 16.9"W x 7"H |
| Special Features | Alarm, Auto Dimmable, Calendar Display, Large Display, Temperature/Humidity Display |
| Power Source | Corded Electric |
| Memory Function Batteries | 2 AAA batteries (included) |
| Mounting Type | Wall Mount, Desk Stand |
| Material Type | Plastic |
9. Warranty and Support
This Xflyee product comes with a 1-Year Warranty from the date of purchase. For any product inquiries, technical support, or warranty claims, please contact Xflyee LLC directly. Contact information can typically be found on the product packaging or the official Xflyee website.
10. Official Product Video
Video 10.1: An official product video from Xflyee LLC demonstrating the 18 Inch Multifunctional Large Digital Wall Clock's features and functionality.