Introduction
Welcome to the user manual for your new XREXS 16.5" Digital Clock. This versatile LED clock features a large display, remote control, adjustable night lights with 7 color changes, dimmer function, and temperature display. It is designed for easy use in various settings, including bedrooms, offices, and living rooms. Please read this manual thoroughly to ensure proper setup and operation of your device.
What's in the Box
Upon opening the package, please verify that all the following items are included:
- XREXS 16.5" Digital Clock
- Remote Control (with pre-installed batteries)
- USB Power Cable
- USB Power Adapter (Wall Plug)
- Mounting Screws and Wall Anchors
- User Manual
- Mounting Hole Ruler

Image: The XREXS 16.5" Digital Clock with its remote control, showcasing the large red LED display and the colorful ambient night light.
Setup
Power Connection
The XREXS Digital Clock is primarily powered by an outlet. Connect the provided USB power cable to the clock and then to the USB power adapter. Plug the adapter into a standard wall outlet. The clock also includes a battery backup feature (requires 2 AAA batteries, not included) to retain time and settings during power outages. During battery backup, the screen will be blank to conserve power.
Mounting Options
Your clock offers two convenient placement options:
- Wall-Mounted: The clock features two keyhole slots on the back for easy wall installation. Use the included mounting hole ruler to mark the precise positions for drilling. Secure the clock to the wall using the provided screws and wall anchors.
- Tabletop: A folding back frame allows the clock to stand gracefully on any flat surface, such as a desk or nightstand.

Image: The clock displayed on a wall above a bed, illustrating its 16.5-inch display size and the remote control for easy setup. Dimensions are 15.6 inches wide and 5.7 inches high.
Initial Time Setting
Upon first power-up, you can manually adjust the time, date, day of the week, and temperature display (℃ or ℉) using the buttons on the top of the clock or the remote control. Alternatively, for convenience, you can sync your phone's Bluetooth with the clock once, and it will automatically set all relevant information, including the time and outside temperature.
Operating Instructions
Time and Date Display
The clock supports both 12-hour and 24-hour display formats. You can switch between these formats using the remote control or the dedicated button on the clock. The display also shows the day of the week and indoor temperature, which can be toggled between Celsius (℃) and Fahrenheit (℉).

Image: A close-up of the clock display, highlighting the temperature display in both Celsius and Fahrenheit, and the 12/24-hour time format options.
Dynamic RGB Night Light
The clock features a dynamic RGB night light with 7 adjustable color changes. This includes 5 fixed color lights and 2 mobile light modes. The night light's brightness can be adjusted through 5 different levels, providing ambient lighting for various preferences and helping with clear visibility in the dark.

Image: The clock displaying various night light colors, demonstrating the 7-color change capability and auto DST feature.
Adjustable Dimmer
The main LED display has 4 adjustable brightness levels (L1-L4) and can also be turned off completely. This allows you to customize the display's intensity to suit your environment and personal comfort, especially useful for bedrooms.

Image: The clock showing different brightness levels (Off, L4, L3, L2, L1) controlled by the remote, illustrating the dimmer function.
Alarm Clock and Timer Functions
The XREXS Digital Clock is a multipurpose device offering three modes: a standard clock, an alarm clock, and a count up/down timer. You can easily switch between these modes using the 'MODE' button on the remote control or the clock itself. Set multiple alarms for different days of the week as needed. The timer function is ideal for various tasks, from cooking to workouts.

Image: A composite image demonstrating the clock's three main modes: a count up/down timer in a gym setting, a standard clock in a meeting room, and an alarm clock in a bedroom setting.
Remote Control Usage
The included remote control provides effortless management of all clock settings. Use it to adjust time, set alarms, change night light colors, control brightness, and switch between different modes from a distance.

Image: A hand holding the remote control, pointing to the "Change the Light Color" button, emphasizing the effortless control over the clock's features.
Product Videos
Official product videos from the seller are not available for embedding in this manual. Please refer to the product listing page for any available video content.
Maintenance
Cleaning
To clean your XREXS Digital Clock, gently wipe the display and casing with a soft, dry, lint-free cloth. Avoid using abrasive cleaners, solvents, or spray cleaners, as these may damage the surface.
Battery Replacement (Backup)
If the clock experiences a power outage and the backup batteries are depleted, you will need to replace them. The clock uses 2 AAA batteries (not included). Open the battery compartment on the back of the clock, remove the old batteries, and insert new ones, ensuring correct polarity. This will maintain your settings during future power interruptions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is blank or not lighting up. | No power supply; power adapter or cable issue; display brightness set to OFF. | Ensure the power cable is securely connected and the adapter is plugged into a working outlet. Check if the display brightness is set to a visible level using the remote or clock buttons. |
| Remote control is not responding. | Remote batteries are low or depleted; obstruction between remote and clock. | Replace the batteries in the remote control. Ensure there are no obstacles blocking the signal path to the clock. |
| Time/Date is incorrect after power outage. | Backup batteries are not installed or depleted. | Install or replace the 2 AAA backup batteries. Manually set the time/date or re-sync via Bluetooth. |
| Bluetooth pairing fails. | Bluetooth on phone is off; clock is out of pairing mode; interference. | Ensure Bluetooth is enabled on your device. Put the clock into pairing mode (refer to manual for specific steps). Try again in an area with less interference. |
If you encounter issues not listed here or if the problem persists, please refer to the full user manual or contact XREXS customer support for assistance.
Specifications
| Brand | XREXS |
| Model Number | Digital Wall Clock 3016 |
| Display Type | Digital LED |
| Color | Red With Night Lights (for this variant) |
| Product Dimensions | 15.6"W x 5.7"H |
| Item Weight | 2.31 pounds |
| Frame Material | Acrylonitrile Butadiene Styrene |
| Power Source | Electrical (Outlet Powered) |
| Battery Backup | 2 AAA batteries (not included) |
| Special Features | Large Display, Remote Control, 7-Color Night Lights, Adjustable Dimmer, Temperature Display (℃/℉), 12/24 Hour Format, Alarm Clock, Count Up/Down Timer, Wall Mount/Tabletop |
| Indoor/Outdoor Usage | Indoor |
Warranty and Support
For information regarding product warranty, returns, or technical support, please visit the official XREXS store on Amazon or contact their customer service directly. Additional protection plans may be available for purchase to extend coverage beyond the standard warranty period.
You can visit the XREXS Store here: XREXS Amazon Store