Home entertainment wireless HDMI extenders promise cable-free 4K video across a room, and the FOURKAY Mini Wireless HDMI System aims to deliver 4K@60Hz with low latency. That can free a living room from trailing leads and make relocating set-top boxes far less stressful. Is the wireless link dependable enough for UHD streaming and casual gaming in typical UK homes?
⚡ At a Glance
- • Image Quality: Supports full 4K at up to 60Hz with RGB and YUV colour formats
- • Best for: Homes needing a cable-free connection for SkyQ, Virgin UHD and Apple TV 4K
- • Not ideal for: Installations requiring signals through solid walls or glass
Compact transmitter and receiver handle 3840x2160 up to 60Hz with HDCP 2.2 and HDMI 2.0 compliance. One-to-one wireless range is up to 20 metres, but performance falls if solid structures obstruct the line of sight.
Consistent 4K Playback - thanks to HDCP 2.2 and HDMI 2.0 compliance
HDCP 2.2 handles encrypted UHD streams from subscription boxes, while HDMI 2.0 bandwidth supports 3840x2160 at 24/30/50/60Hz across RGB and YUV 4:4:4 and 4:2:2 formats. The link preserves the source timing and colour formats when signal strength remains adequate.
Secure playback from SkyQ, Virgin UHD and Apple TV 4K without downscaling, provided the transmitter and receiver have a clear path. Expect film and live sports to appear at native resolution when the connection is stable.
Flexible Placement and Low Interference - with selectable 5G channels and up to 20 metres range
Users can select one of four 5GHz channels between 5.180GHz and 5.240GHz to avoid local congestion, and the system uses point-to-point 1-to-1 wireless transmission rated for up to 20 metres in open space. Solid structures such as walls or glass can reduce or cut the signal.
Move set-top boxes, consoles or media players around a room without trailing HDMI leads, while keeping interference to a minimum by switching channels. Keep three walls or large glass panels out of the signal path for best results.
Straightforward Power and Setup - with micro USB power and single-button channel switching
Both transmitter and receiver are powered via supplied micro USB cables that require a 5V 1A supply; some TV or set-top box USB ports only provide 0.5A so a 1A USB charger may be needed. A single-button on the units changes channels to help pair multiple sets in close proximity.
Installation is simple using a TV USB port or a small USB adaptor, and channel switching makes setup fast even when multiple extenders are nearby. Responsive customer support helps resolve any power or pairing issues.
✨ The 4 Key Reasons for FOURKAY Mini Wireless HDMI System
- 4K@60Hz Support - Maintains native UHD resolution and smooth motion for films and games.
- Low-Latency Transmission - Keeps lag low enough for streaming and casual gaming experiences.
- Selectable 5G Channels - Reduces interference when several sets are used nearby.
- Micro USB Power - Allows powering from common USB ports or a simple 1A charger.
📋 Technical Details at a Glance
- Resolutions: 3840x2160@24/30/50/60Hz, 1080p@50/60Hz, 720p@50/60Hz, 1920x1200@60Hz
- HDCP: HDCP 2.2
- HDMI Version: HDMI 2.0
- Range: Up to 20 metres line of sight, environment dependent
- Transmission: 1-to-1 wireless link, low-latency
❓ Frequently Asked Questions
Q: Will the system work through walls?
A: Signal may be reduced or completely lost when solid structures such as walls or glass are between transmitter and receiver, so performance is best with line-of-sight or minimal obstructions.
Q: How do I power the transmitter and receiver?
A: Two micro USB cables are included to power each unit from a 5V 1A USB port on the display or source, or from a separate 1A USB charger if the TV or set-top box USB port only supplies 0.5A.
Q: Can I use more than one set in the same house?
A: Yes, the 5GHz channel can be set to one of four frequencies between 5.180GHz and 5.240GHz to help avoid interference when multiple sets are in close proximity.
🏆 Our Verdict
Suitable for homeowners who want a tidy, cable-free way to send 4K signals across a room, particularly for SkyQ, Virgin UHD and Apple TV 4K sources. The combination of HDCP 2.2, HDMI 2.0 and selectable 5GHz channels makes it a practical solution for preserving UHD quality in line-of-sight setups. Reviews note it as a cost-effective alternative to running HDMI cables, delivering good long-term value for flexible AV arrangements.
