WUHD-PRO100-K Overview and Use Cases

What Is the WUHD-PRO100-K?

The OREI WUHD-PRO100-K is a 4K@30Hz wireless HDMI sender and receiver kit designed for in-room Ultra HD wireless video transmission.

The kit includes a Transmitter and Receiver. The HDMI source connects to the Transmitter HDMI input, the display connects to the Receiver HDMI output, and the HDMI signal is sent wirelessly between the two units.

The WUHD-PRO100-K uses Ultra Wide Band 60GHz wireless technology and supports HDMI wireless transmission up to 4K@30Hz. It is designed with no compression and no latency, supports HDCP, and can transmit up to 10m / 33ft line of sight. The package includes the Transmitter, Receiver, two stands, two DC 5V/1A Micro USB power adapters, and the user manual.

The WUHD-PRO100-K is useful for home theaters, meeting rooms, game rooms, projector setups, and situations where a wired HDMI cable is not practical.

IMPORTANT — WUHD-PRO100-K Supports 4K@30Hz, Not 4K@60Hz

The WUHD-PRO100-K supports wireless HDMI transmission up to 4K@30Hz.

It does not support:

1. 4K@60Hz
2. 4K@120Hz
3. 8K 
    
   If the source device is set to 4K@60Hz and the Receiver display has no signal, change the source output to Auto, 4K@30Hz, or a lower resolution supported by the TV or projector.

IMPORTANT — Uses 60GHz Ultra Wide Band Wireless Technology

The WUHD-PRO100-K uses Ultra Wide Band 60GHz technology.

This helps reduce interference compared with typical 2.4GHz or 5GHz wireless HDMI systems.

It is designed for in-room wireless transmission where the Transmitter and Receiver are placed within line of sight.

IMPORTANT — Maximum Distance Is 10m / 33ft Line of Sight

The WUHD-PRO100-K supports wireless transmission up to about 10m / 33ft line of sight.

Line of sight means the best performance is achieved when there is a clear path between the Transmitter and Receiver.

Walls, cabinets, furniture, AV racks, people, and other obstacles can reduce the working distance.

The manual also notes that the optimum indoor range is less than 10m.

IMPORTANT — Place Both Units at a 45° Angle for Best Performance

The manual recommends placing both the Transmitter and Receiver at a 45-degree angle for optimal transmission.

The included stands can be positioned at 45 degrees or 90 degrees.

For best signal quality:

1. Install the stands securely
2. Keep both units visible to each other
3. Place both units at a 45-degree angle
4. Do not cover either unit
5. Keep obstacles away from both units

IMPORTANT — No Compression and No Latency Design

The WUHD-PRO100-K is listed as a no-compression, no-latency wireless HDMI system.

This makes it more suitable than higher-latency wireless HDMI products for applications where timing matters, such as:

1. Home theater
2. Game room use
3. Presentations
4. Meeting room displays 
    
   Actual performance can still depend on source settings, display compatibility, distance, and line-of-sight conditions.

IMPORTANT — This Is One-to-One Wireless HDMI

The WUHD-PRO100-K is designed as one Transmitter to one Receiver.

It is not listed as a one-to-many wireless HDMI system.

For one source to multiple displays, use a wireless HDMI model that specifically supports one-to-many, or use an HDMI splitter with multiple wireless kits.

IMPORTANT — Both Units Need Power

Both the Transmitter and Receiver require power.

The package includes two DC 5V/1A Micro USB power adapters.

Use only the included power adapters when possible.

If using your own adapter, make sure:

Incorrect or weak power may cause no video, connection drops, unstable signal, or pairing issues.

IMPORTANT — Keep Away From Wireless Interference

Even though the WUHD-PRO100-K uses 60GHz UWB technology, unstable video can still happen if the installation environment is poor.

The manual warns that interference or unstable video may be caused by nearby wireless devices or high-power household devices such as:

1. Wi-Fi routers
2. Microwaves
3. Air conditioners
4. Other wireless devices
5. Long distance
6. Walls or obstacles 
    
   If the picture is unstable or snowy, move the Transmitter and Receiver closer, remove obstacles, and adjust the direction of the stands.

IMPORTANT — Pairing May Be Needed

If there is no video signal, the Transmitter and Receiver may need to be paired.

Pairing process:

1. Press the PAIRING key once on the Receiver.
2. Press the PAIRING key once on the Transmitter.
3. The connection should automatically establish after successful pairing.

IMPORTANT — No HDMI Loop Out

The WUHD-PRO100-K does not include HDMI loop out.

It has:

1. HDMI IN on the Transmitter
2. HDMI OUT on the Receiver 
    
   If a local display is needed near the source, use an HDMI splitter before the Transmitter or choose a model with HDMI loop out.

IMPORTANT — No IR Control Listed

The WUHD-PRO100-K manual does not list IR pass-through, IR IN, or IR OUT ports.

This model is focused on wireless HDMI video and audio transmission.

If remote control of the source device from the display side is required, use a wireless HDMI model that includes IR passback.

Ports and Panel Layout

Step-by-Step Setup

1. Connect an HDMI cable from the HDMI source device to HDMI IN on the Transmitter. 
   Examples include a satellite receiver, cable box, Blu-ray player, PS4, Xbox, media player, or computer.
2. Connect an HDMI cable from HDMI OUT on the Receiver to the HDMI input on the display. 
   Examples include an Ultra HDTV, projector, monitor, or TV.
3. Install the included stands on both units.
4. Place both the Transmitter and Receiver at a 45-degree angle for optimal transmission.
5. Make sure there are no obstacles covering either unit.
6. Connect one DC 5V/1A Micro USB power adapter to the Transmitter.
7. Connect the second DC 5V/1A Micro USB power adapter to the Receiver.
8. Power on the HDMI source and display.
9. Select the correct HDMI input on the display.
10. If no video appears, press the PAIRING button on the Receiver first, then press the PAIRING button on the Transmitter.
11. Wait for the connection to establish.

Power Requirement — Critical

Both units require DC 5V/1A Micro USB power.

Use the included power adapters for best performance.

Poor or insufficient power may cause:

1. No video
2. No sound
3. Pairing failure
4. Wireless connection failure
5. Signal dropouts
6. Unstable image

Wireless Signal Requirement — Critical

For best performance, keep the Transmitter and Receiver within 10m / 33ft line of sight.

Wireless performance may be affected by:

1. Walls
2. Cabinets
3. AV racks
4. Metal objects
5. People walking between units
6. Long distance
7. Wireless interference
8. Poor unit angle
9. Units being covered 
    
   Do not cover the Transmitter or Receiver with any object.

HDMI Cable Requirement — Critical

Use High Speed HDMI cables.

Poor HDMI cables may cause:

1. No picture
2. No sound
3. Unstable video
4. HDCP handshake issues
5. 4K@30Hz not working
6. Wireless connection appearing active but no display output 
    
   For troubleshooting, test the HDMI source directly with the display first.

Understanding the Transmitter

The Transmitter is installed near the HDMI source device.

It has:

1. HDMI IN
2. Micro USB power jack
3. Pairing button
4. Reset button
5. LED indicator
6. Stand attachment 
    
   The Transmitter sends the HDMI signal wirelessly to the Receiver.

Understanding the Receiver

The Receiver is installed near the HDMI display.

It has:

1. HDMI OUT
2. Micro USB power jack
3. Pairing button
4. Reset button
5. LED indicator
6. Stand attachment 
    
   The Receiver receives the wireless HDMI signal and outputs it to the TV, monitor, or projector.

Understanding Pairing Mode

Pairing is used when the Transmitter and Receiver do not automatically connect.

Pairing steps:

After successful pairing, the units should connect and play the HDMI signal.

Understanding LED Indicators

Use the LED indicators when troubleshooting connection or pairing issues.

Understanding 4K Source Settings

If the Transmitter side appears to be playing normally but the Receiver display has no signal, check the source output resolution.

The manual specifically notes that if the source output is set to 4K@60Hz, the Receiver display may not show signal.

Recommended fixes:

This model is for 4K@30Hz wireless transmission, not 4K@60Hz.

Supported Features

What Source Devices Is the WUHD-PRO100-K Compatible With?

The WUHD-PRO100-K can work with HDMI source devices such as:

1. Satellite receivers
2. Cable boxes
3. CATV set-top boxes
4. Blu-ray players
5. DVD players
6. PS4
7. Xbox
8. Media players
9. Streaming devices
10. Computers with HDMI output 
     
    The source device must support a resolution compatible with the display and the WUHD-PRO100-K. 
     
    For 4K use, set the source to 4K@30Hz or lower.

What Displays Is the WUHD-PRO100-K Compatible With?

The WUHD-PRO100-K can connect to HDMI displays such as:

1. Ultra HDTVs
2. 4K TVs
3. Projectors
4. Monitors
5. Meeting room displays
6. Game room displays
7. Home theater displays 
    
   The display must support the selected HDMI output resolution from the source.

Frequently Asked Questions

Q: What is the OREI WUHD-PRO100-K used for? 
A: The WUHD-PRO100-K is used to wirelessly send HDMI video and audio from one HDMI source to one HDMI display. It supports up to 4K@30Hz over a short in-room wireless connection.

Q: Does the WUHD-PRO100-K support 4K? 
A: Yes. It supports wireless HDMI transmission up to 4K@30Hz.

Q: Does the WUHD-PRO100-K support 4K@60Hz? 
A: No. It does not support 4K@60Hz. If the source is set to 4K@60Hz, change it to Auto, 4K@30Hz, or a lower resolution.

Q: Does it support 8K? 
A: No. It does not support 8K.

Q: Is this a wireless HDMI extender? 
A: Yes. It sends HDMI wirelessly between the Transmitter and Receiver.

Q: What wireless technology does it use? 
A: It uses Ultra Wide Band 60GHz wireless technology.

Q: Is the signal compressed? 
A: No. The manual describes it as no-compression transmission.

Q: Is it zero-latency? 
A: The manual describes it as no-latency transmission.

Q: How far can it transmit? 
A: It supports up to about 10m / 33ft line of sight. The optimum indoor range is less than 10m.

Q: Does it work through walls? 
A: It is designed for line-of-sight in-room transmission. Walls and obstacles can shorten the working distance or reduce stability.

Q: Does it need power on both ends? 
A: Yes. Both the Transmitter and Receiver require DC 5V/1A Micro USB power.

Q: What power adapter should I use? 
A: Use the included DC 5V/1A Micro USB power adapters. If using your own adapter, it must be Micro USB and DC 5V/1A.

Q: Does the Transmitter have HDMI loop out? 
A: No. HDMI loop out is not listed for this model.

Q: Does it support IR remote control? 
A: No IR passback function is listed in the manual.

Q: Can I use one Transmitter with multiple Receivers? 
A: No. One-to-many support is not listed in the manual.

Q: How should I position the units? 
A: Place both units at a 45-degree angle for optimal transmission and make sure they are not covered.

Q: What should I do if there is no picture? 
A: Confirm the source works directly with the display, check HDMI cables, use High Speed HDMI cables, and unplug the power cable to restart the WUHD-PRO100-K.

Q: What should I do if there is no sound? 
A: Check the TV volume, check HDMI cable connections, confirm the cable is not damaged or video-only, and restart the unit because HDCP may not match correctly at first connection.

Q: What should I do if video is unstable or snowy? 
A: Move the units away from interference sources, reduce the distance, remove obstacles, and adjust the direction of the Transmitter and Receiver stands.

Q: What should I do if the wireless connection fails? 
A: Make sure the source device is turned on, unplug and reconnect power to restart the units, and pair the Transmitter and Receiver again.

Q: How do I pair the Transmitter and Receiver? 
A: Press the PAIRING key once on the Receiver, then press the PAIRING key once on the Transmitter.

Q: What do flashing white LEDs mean? 
A: Flashing white LEDs indicate startup, no connection, or pairing.

Q: What do solid white LEDs mean? 
A: Solid white LEDs indicate connection and playback.

Q: Why does the Transmitter side play video but the Receiver display shows no signal? 
A: The source may be set to 4K@60Hz. Change the source output to Auto, 4K@30Hz, or another lower resolution supported by the display.

Q: Does the WUHD-PRO100-K need external power? 
A: Yes. Connect one DC 5V/1A Micro USB power adapter to the Transmitter and one DC 5V/1A Micro USB power adapter to the Receiver.