1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your YEHUA R15Y Wireless HDMI Transmitter and Receiver kit. This device allows for wireless transmission of HDMI signals up to 200 meters (656 feet) in an open field, supporting 1080p resolution at 60Hz. It features dual-band 5G/2.4G connectivity for stable transmission, an HDMI loop-out on the transmitter, AUX output on the receiver, and infrared (IR) remote control functionality.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1x YEHUA Wireless HDMI Transmitter (TX)
- 1x YEHUA Wireless HDMI Receiver (RX)
- 4x Antennas
- 2x Power Adapters
- 2x 1-meter HDMI Cables
- 2x IR Cables (1x IR Blaster, 1x IR Receiver)
- 1x Audio Cable (AUX)
- 1x User Manual

Figure 2.1: Package Contents. This image displays all items included in the YEHUA R15Y Wireless HDMI Extender kit, ensuring users can verify their package is complete.
3. Product Overview and Interface Details
Familiarize yourself with the transmitter (TX) and receiver (RX) units and their respective ports.

Figure 3.1: Interface Details. This diagram illustrates the various ports and indicators on both the Transmitter (TX) and Receiver (RX) units, along with examples of compatible input sources (video camera, PS3/4/5, PC, laptop) and output displays (HDTV, monitor, projector).
Transmitter (TX) Ports:
- HDMI IN: Connects to your HDMI source device (e.g., laptop, PC, game console).
- HDMI OUT (Loop Out): Allows you to connect a local display to mirror the source content.
- IR OUT: Connects to the IR Blaster cable to control the source device remotely.
- AUX IN: For audio input.
- MODE Button: Used for pairing and mode selection.
- AC Power Port: Connects to the power adapter.
Receiver (RX) Ports:
- HDMI OUT: Connects to your display device (e.g., HDTV, projector, monitor).
- IR IN: Connects to the IR Receiver cable to receive remote control signals.
- AUX OUT: For audio output to external speakers.
- MODE Button: Used for pairing and mode selection.
- AC Power Port: Connects to the power adapter.
4. Setup Instructions
The YEHUA R15Y is designed for plug-and-play operation, requiring no Wi-Fi, Bluetooth, or app installation.
- Attach Antennas: Screw the two antennas securely onto both the Transmitter (TX) and Receiver (RX) units.
- Connect Transmitter (TX):
- Connect one end of an HDMI cable to the HDMI output of your source device (e.g., laptop, set-top box).
- Connect the other end of the HDMI cable to the HDMI IN port on the TX unit.
- (Optional) If you wish to mirror the content on a local display, connect another HDMI cable from the HDMI OUT (Loop Out) port on the TX unit to your local display.
- (Optional) Connect the IR Blaster cable to the IR OUT port on the TX unit. Position the IR Blaster head near the IR sensor of your source device.
- Connect a power adapter to the AC Power Port of the TX unit and plug it into a power outlet.
- Connect Receiver (RX):
- Connect one end of an HDMI cable to the HDMI OUT port on the RX unit.
- Connect the other end of the HDMI cable to the HDMI input of your display device (e.g., TV, projector, monitor).
- (Optional) Connect the IR Receiver cable to the IR IN port on the RX unit. Position the IR Receiver head in a location where it can receive signals from your remote control.
- (Optional) Connect an audio cable from the AUX OUT port on the RX unit to external speakers if desired.
- Connect a power adapter to the AC Power Port of the RX unit and plug it into a power outlet.
- Power On and Pair:
- Ensure both the TX and RX units are powered on.
- The units will automatically pair within approximately 5 seconds. The STA (green light) indicator on both units will illuminate steadily once paired successfully.
- Your display should now show the content from your source device.

Figure 4.1: Transmitter and Receiver Units. This image shows the compact design of the YEHUA R15Y units with their antennas, illustrating their readiness for setup.
5. Operating Instructions
5.1 Basic Operation (Mirror/Extend Mode)
Once the TX and RX units are paired, the content from your source device will be wirelessly transmitted to the display connected to the RX unit. If you have connected a local display to the TX unit's HDMI Loop Out, the content will be mirrored on both displays.

Figure 5.1: HDMI Loop Out Function. This image illustrates how the HDMI Loop Out on the Transmitter (TX) allows content to be displayed on a local screen while simultaneously being transmitted wirelessly to another display.
5.2 Infrared (IR) Remote Control Function
The integrated IR function allows you to control your source device (e.g., set-top box, DVD player) from the location of the receiver (RX).
- Ensure the IR Blaster cable is connected to the TX unit's IR OUT port and positioned near your source device's IR sensor.
- Ensure the IR Receiver cable is connected to the RX unit's IR IN port and positioned to receive signals from your remote control.
- Point your source device's remote control at the IR Receiver connected to the RX unit. The signals will be transmitted wirelessly back to the TX unit, which will then relay them via the IR Blaster to control your source device.

Figure 5.2: IR Remote Control Function. This image demonstrates how the IR function enables remote control of the source device from the receiver's location, enhancing convenience for users.
5.3 Multiple Receiver Pairing (Optional)
One YEHUA R15Y Transmitter (TX) can be paired with up to four Receivers (RX) simultaneously (additional RX units sold separately, model B09XD5SL7G). This allows you to transmit the same HDMI signal to multiple displays.
- Ensure the TX unit and all RX units are powered on.
- Connect an HDMI cable from the HDMI OUT of each RX unit to the HDMI IN of the TX unit.
- The units will automatically pair. The STA (green light) on each RX unit and the TX unit will illuminate steadily after a few seconds, indicating successful pairing.
- Once paired, disconnect the HDMI cable used for pairing from the TX unit. The RX units will maintain their wireless connection.

Figure 5.3: One TX to Four RXs. This diagram demonstrates the capability of one Transmitter (TX) to broadcast its signal to up to four Receivers (RX) simultaneously, enabling multi-display setups.
6. Maintenance
To ensure optimal performance and longevity of your YEHUA R15Y Wireless HDMI Transmitter and Receiver, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the units. Do not use liquid or aerosol cleaners.
- Environment: Keep the devices in a cool, dry place, away from direct sunlight, heat sources, and excessive moisture.
- Ventilation: Ensure proper ventilation around the units to prevent overheating. Do not block any ventilation openings.
- Cables: Regularly check all connected cables for any signs of damage. Replace damaged cables immediately.
- Power: Disconnect the power adapters from the wall outlet when the devices are not in use for extended periods.
7. Troubleshooting
If you encounter issues with your YEHUA R15Y system, please refer to the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No signal on display. |
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| Unstable or flickering image/audio. |
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| IR remote control not working. |
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8. Specifications
Key technical specifications for the YEHUA R15Y Wireless HDMI Transmitter and Receiver:
| Feature | Detail |
|---|---|
| Brand | YEHUA |
| Model Number | R15Y |
| Connectivity Technology | Wireless (5G/2.4G Dual Band) |
| Max Transmission Distance | Up to 200 meters (656 feet) in open field |
| Max Resolution | 1920 x 1080P @ 60Hz |
| HDMI Ports | TX: 1x HDMI In, 1x HDMI Out (Loop Out); RX: 1x HDMI Out |
| Audio Output Mode | Stereo (via AUX on RX) |
| Special Features | HDMI Loop Out, IR Control Function, Supports 1 TX to 4 RXs |
| Compatible Devices | PC, Laptop, TV, Projector, Game Consoles, Set-top Boxes, etc. |
| Video Encoding | H.264, H.265/HEVC, VP9, AV1, MPEG-4 |
| Power Consumption | 5 Watts |
9. Safety Information
Please read and follow these safety precautions to prevent damage to the device or injury to yourself:
- Do not expose the device to water, moisture, or extreme temperatures.
- Do not attempt to disassemble or modify the device. This will void the warranty and may cause damage or injury.
- Use only the provided power adapters. Using unauthorized power adapters may damage the device.
- Keep the device away from strong magnetic fields.
- Ensure the device is placed on a stable surface to prevent it from falling.
- Unplug the power adapter during lightning storms or when unused for long periods.
10. Warranty and Support
For technical support or warranty inquiries, please contact YEHUA customer service:
- Email: support@yehuan.com
Please have your model number (R15Y) and purchase information ready when contacting support.