The operation of the device is remarkably stable even at distances of up to 100 metres, which excludes the risks of lag or poor quality video output. This is achieved thanks to the built-in antennas on both the receiver and the transmitter that enable quick pairing and added stability.
Can lag a bit when synching devices.
The Hollyland MARS 300 PRO is an excellent HDMI extender and it is truly a professional-grade model. Ideal for broadcasting Full HD video at distances well-exceeding household use, it will prove to be an invaluable asset if you plan to use it outdoors.
Wireless transmitter and receiver
1920 x 1080 (Full HD)
Transmitter: HDMI in, HDMI loop-out, 1 х 6-16V DC, micro-USB
Receiver: 2 x HDMI Output, 1 х 6-16V DC, micro-USB
OLED screen, Receivers with built-in antennas, 5-12V wide voltage power supply, Multi-functional clickable thumbwheel switch
The Nyrius ARIES Prime Wireless Transmitter delivers dynamic (DFS) and automatic (AFS) frequency selection options. In addition, it is compatible with mini/micro HDMI adapters and comes with an L-adapter for convenient transmitter installation.
The receiver may get very hot during the use.
Being a splendid option for transmitting a high-quality video signal it also provides an effective transmission of a quality sound signal. The device has gained the FCC, ICE, CUL and UL international certifications.
Wireless transmitter and receiver
1920 x 1080 (Full HD)
Transmitter: HDMI input, Mini USB (AC adapter included)
Receiver: HDMI output, Mini USB (USB cable included)
Wall mounting option for the transmitter (mounting hardware included), HDMI cable and RightAngle™ adapter included
The model offers wide-frequency (20-60 kHz) infrared coverage. The included IR cables will let you control Blu-ray players or different HDMI sources at a remote location. Both devices can work with 1080p@60 fps footage.
Sometimes, the signal drops out after some time of inactivity.
The Measy FHD676 offers no-compression, no-delay performance on the most ridiculous (up to 200 metres) distance. With this package and the 2 powerful external antennas both devices are sporting, even the biggest conference rooms and the least humble houses will be covered.
Wireless transmitter and receiver
1920 x 1080 (Full HD)
Transmitter: HDMI input, HDMI output, Power supply port (AC adapter included)
Receiver: HDMI output, Power supply port (AC adapter included)
2 external antennas on each device, IR cables included
Unlike other devices in the same price range, this tiny dongle is capable of delivering 4K videos and media directly to your screen. The Android and iOS compatibility, on the other hand, allows for sharing your screen onto a TV or a digital screen with an HDMI port.
The manual is a bit inaccurate.
The AT-Mizhi has a remarkably quick pairing time, thanks to its Plug and Play design. Likewise, the sound and the video quality of this 4K-capable device is impeccable, which is really great, considering the modest price tag of the whole kit.
Streaming receiver (compatible with Android, iOS, macOS and Windows devices)
3840 x 2160 (4K Ultra HD)
HDMI-output, micro-USB (USB-cable included)
Plug and play, Mirror mode, Extend mode
The HDMI output is pretty tight, preventing accidental removal. The dual-core processor can display high-bitrate video that features multiple sound channels without freezes. Aside from DLNA, this device supports Airplay.
The USB cable is short.
With the Eadidi Cast-123, you'll be sharing PPT, documents, or emails with your colleagues in a meeting without wires. Of course, since the model is also compatible with android and iOS, you can also play mobile games or watch YouTube clips on a big screen.
Streaming receiver (compatible with Android, iOS, macOS, and Windows devices)
3840 x 2160 (4K Ultra HD)
HDMI output, Micro USB (USB cable included)
Hollyland MARS 300 PRO
Designed for Full-HD Broadcasting
The Hollyland MARS 300 PRO is one of those wireless HDMI models that grabs your attention with their look but in this case, there is a tad bit more to it than just the looks.
To start off, in contrast with other similar devices of the same category, the Hollyland MARS 300 PRO features an OLED screen. which is a bit unusual for a wireless device such as this. Nevertheless, the transmitter has it, and the side screen will conveniently show you its power status, the results of the channel scan, as well as the video input mode and the number of the selected channel.
When it comes to the numbers, the Hollyland MARS 300 PRO has little to no competition, thanks to its long-range transmitter that is capable of transmitting the signals on distances of up to 91 metres without breaking a sweat. Owing to this, the MARS 300 PRO is a good contender for the role of a Full HD wireless HDMI unit that works with multiple formats without any noticeable lag.
As for the actual video output you can select different quality presets from 480p all the way to 1080p with little to no loss in quality. To add more, both the transmitter and the receiver are equipped with a high-powered antenna that enhances an already strong signal in order to eliminate any potential frequency interference. For added convenience, the cooling fan’s speed can be adjusted using the provided controls, which will come in handy when you are recording close to a microphone and silent operation is preferred.
Works From Batteries and Power Outlets
Moving away from the digital specifications of the appliance, it is important not to omit the interfaces included in the package. Firstly, both the transmitter and the receiver feature HDMI outputs, as expected. However, the receiver has 2 HDMI ports and that allows for connecting two screens or monitors at the same time.
Power-wise, both units can be powered via a 6-16 V DC connection that enables the use of 12 V battery packs. Conversely, you can always hook up the gadgets to an AC power socket using a USB adapter and a micro-USB cable. Fortunately, the transmitter and receiver have a built-in micro-USB port.
To wrap things up, the Hollyland MARS 300 PRO is, without a doubt, a professional-grade HDMI transmitter that will be a good option for users that need a device that can broadcast a Full HD signal on great distances without the need to run cables. The stability of the connection as well as its long-range reach makes the MARS 300 PRO a go-to solution for broadcast-related tasks.
|Last updated price||$0.00|
Nyrius ARIES Pro (NPCS600)
Enjoy an Excellent Sound
Finding the most prominent features of the Nyrius ARIES Prime was an easy task. The case is this model is amazingly capable in terms of high-quality sound transmission. Consisting of a transmitter and a receiver, the ARIES kit supports the wireless streaming of 7.1 surround sound, thus enabling you to easily transmit high-quality uncompressed audio from your portable and desktop devices supporting this format. This feature is outstanding as the major part of competing products are capped at 5.1 channel sound transmission.
Like its peers, this Prime model by Nyrius supports transmission of the audio converted from its original analogue form to the digital one using the pulse-code modulation (PCM) method. In addition to the standard PCM-encoded sound, the kit supports wireless transmission of the DTS (Digital Theater System) format audio that was developed to provide a high-quality sound for home theatre systems. Indeed, choosing the Nyrius ARIES Prime provides great benefits of enjoying high-quality multichannel audio wirelessly transmitted over large distances.
What do You Know About HDCP?
Today all manufacturers of wireless video senders are regarding signal protection matter a very important one. For that purpose, the majority of companies use the High-Bandwidth Digital Content Protection (HDCP) protocol. This protocol was engineered by Intel and serves as a tool to control and manage digital data access via DVI and HDMI interfaces.
The intended purpose of the HDCP is to prevent the transfer of unencrypted high-definition audio and video signal. However, Intel as the license holder charges the HDCP adopters a license fee. Nevertheless, all manufacturers of high-definition audio/video receivers are obliged to use this data protection technology by a special US law. As a side note, the HDCP support is mandatory for devices to achieve conformity to the requirements of the HD ready certificate. In conclusion, other than being a splendid option for transmitting a high-quality video signal, this product also provides an effective transmission of a quality sound signal. Moreover, the device has gained the FCC, ICE, CUL, and UL international certifications.
|Last updated price||£199.99|
200 Metres Transmission Range
The Measy FHD676 is an odd-sounding name, though there's nothing odd about these devices. Quite the opposite, their parameters are strong across the board. You can start practically anywhere with this package and you'd be highlighting its noticeable superiority among comparable wireless HDMI transmitters and receivers within the same price bracket, so we'll use the maximum range as the springboard.
Reaching 200 metres (more than 650 feet), the model covers sizable conference rooms and the biggest houses, so you can do without long HDMI cables extending video signals. Different scenarios have different needs but, as far as we're aware, there are no scenarios where 200 metres is insufficient.
Of course, at 100 quid, this device offers Full HD (1920 x 1080p) wireless transmission. What's more, the model can transmit Full HD footage at 60 fps. Compressing and decompressing H.264 video, this device transfers the footage with efficiency, ensuring high playback fluency with the high-bandwidth digital content protection tech covering its six.
Not unlike its less expensive competition, the model offers digital 5 GHz frequency wireless audio and video transmission. And, needless to say, it is compatible with HDMI 1.3 and HDCP 1.2, which is something that wireless HDMI transmitters and receivers nowadays are not complete without.
The model comes equipped with 2 external antennas on each side, hence its fantastic coverage. However, to go with these external antennas, the Measy FHD676 also offers 20-60 kHz wide-frequency infrared coverage. Using the IR cables that are shipped with the package, you'll be able to control HDMI-source devices (like Blu-ray players) at a remote location, 'manipulating' them from a different room.
Is the product flawless? No, none are. Its biggest flaw is not the price though. Sure, some people might feel like 100 quid is pretty steep, but this is actually quite reasonable considering the specs. The biggest problem we have with this device is that the signal will occasionally drop after some time of inactivity. It is not the worst problem you can have with wireless HDMI transmitters/receivers but a problem nonetheless. What's not a problem is that the same signal will remain smooth even through a wall or ceiling (assuming they're not very dense).
All things considered, when transmission range is a top priority, you cannot go wrong with Measy FHD676 and its no-compression, no-delay performance.
|Last updated price||£99.00|
The Smallest 4K-Capable Extender
The AT-Mizhi wireless HDMI display adapter is yet another dongle-like HDMI extender that can be used with a wide variety of different monitors, digital screens, and TVs. That being said, compactness is merely a feature of this model and not its main selling point.
The main factor that makes this affordable HDMI extender valuable among other products included on our list is, of course, a 4K (3840 x 2160) resolution that puts it miles ahead of simple Full HD. But how exactly is it capable of transmitting such a high resolution without issues? Well, that is where we need to take a look at what is inside of the unit.
When you take a first glance at the transmitter, it doesn’t look like there’s much going on. However, that first impression is deceiving. The main thing that separates this particular dongle from the competition is the Wi-Fi support that gives it an edge when it comes to data throughput and how much more it can process in seconds. This wireless module enables the receiver to broadcast the high-quality video feed directly to large TVs and screens without a hitch.
Compact and Powerful
Another thing that is convenient here is the size of the whole package. Measuring only 21.2 x 15.6 x 2.3 cm in size, the device is extremely compact, light, and easy to carry around, which makes it an optimal choice for presentations or for a TV cinema projector. Likewise, the device will work excellently with laptops and computer monitors that feature an HDMI port.
Compatible with both Android-based phones and iPhones from Apple, the AT-Mizhi can be used to broadcast media directly to your TV, computer screen or laptop monitor with ease. What is really good about this setup, however, is that it doesn’t require you to install any external applications. Simply turn on the Wi-Fi, pair the appliance with your mobile gadget and you will be ready to stream. The only caveat of the system is that its maximum effective range is limited to only 10 metres.
Last but not least, the appliance supports both 2.4 GHz and 5 GHz wireless bands, which ensure that the transmitted signal won’t be interfered with by other devices or gadgets. Finally, the AT-Mizhi is an excellent budget-friendly wireless HDMI extender that works flawlessly with high-definition TVs, thanks to its reliable connection and 4K resolution support. So, if you are looking for the best bang for your buck, there is little doubt about it - the AT-Mizhi is the right model for that.
|Last updated price||$0.00|
The Eadidi Cast-123 costs virtually nothing. At less than 15 quid, this device boasts pretty uncanny specs and features. Before we discuss these features, however, let's address its footprint.
Including the supplied USB cable, the model measures 10.7 x 10.6 x 2.2 centimetres, which's fairly modest. In the same vein, this device weighs 70 grammes, so you can drop it in the bag/backpack and not even notice that it's there. We also like its shape, with the rounded butt preventing the dongle from scratching fragile surfaces. But we're not quite as enthusiastic about the aforementioned USB cable. Because it is as short as it is, you will sometimes feel a little tied.
The HDMI output, on the other hand, is tight but not unnecessarily tight, which means that you can insert and remove it with ease but also that the dongle will not be detached accidentally. There's a small external antenna stretching the model's coverage range 10 metres. Whilst 10 metres is not necessarily unheard of, considering the dongle's size and the fact that the antenna is practically nonexistent, the fact that its range is 10 metres and not 5-8 metres tops is pretty impressive.
What's also pretty impressive is the dual-core processor that this device comes outfitted with. Thanks to this processor, the model receives a signal without compression and without delay, displaying even high-bitrate footage with multiple sound channels through DLNA without introducing freezes.
Again, taking the modest price into account first, there's virtually nothing disappointing about the dongle's performance. Besides DLNA, the model supports Airplay. With Full HD (1920 x 1080p) video, this device also offers screen reflection. Whilst the model does not support screen reflection with Ultra HD (3840 x 2160p) footage, the fact that this dongle is compatible with 4K content is quite impressive in and of itself. Furthermore, this content can be coming not just from Windows devices but also Android, iOS, and macOS. Furthering its cause even more, the model's housing is excellent at dissipating heat, preventing the internal components (including its circuitry) from overheating.
In closing, with the Eadidi Cast-123, you can share PPTs, emails, documents, as well as other content with colleagues without wires. You can also view photos from a phone on a large-screen TV or use streaming surfaces even if the TV doesn't include Smart features.
|Last updated price||$0.00|
What Is a Wireless HDMI?
As many of you probably know, an HDMI cable is needed to provide a transfer of high-quality digital video and audio data. But what to do if you want to connect devices that are placed at a considerable distance from each other? For example, they can be placed on different floors or in different rooms, and connecting them by wires would simply be impractical. A wireless HDMI system (also called a video sender) will be a perfect solution for you to use in that case.
This video sender, more often than not, consists of a transmitter and a receiver to transfer images and sound from your PC, Blu-Ray player, console, or gaming station to the TV screen, monitor, TV projector, or any other similar appliances. Standard HDMI extenders usually use a Wi-Fi connection, which is powerful enough to handle a Full-HD resolution and, in some cases, even 4K with ease.
If you still have problems with regards to numerous HDMI cables for your equipment, we recommend that you pay attention to one of the HDMI Switchers & Splitters we've described in our other review.
What else you may want to acquire is a quality projector or a new cutting-edge TV-set that will free a lot of space in the room.
What Features to Compare
Data Transmission Technology
When choosing a wireless HDMI system, we recommend considering the type of data transmission technology. Currently, most of the manufacturers use the following types: WirelessHD, WHDI, and WiFi. The main difference between these technologies is their operation at different frequencies, provided transmission range and their ability to transmit signals through objects and obstacles. The WirelessHD technology can transmit high-quality video and audio, but it has a limited transmission range; thus it usually requires minimum obstacles located between the transmitter and receiver. In their turn, WHDI and Wi-Fi technologies are perfect for signal transmission throughout the house owing to a higher transmission range supported and the ability of their signals to penetrate through walls and other objects on their way. However, you need to take into consideration possible signal power loss and thus visual quality degradation because of the signal transmission over long distances.
Video and Audio Transmission Quality
The quality of video and audio signal transmitted is also an important parameter when deciding on a specific wireless HDMI system. We recommend you to make sure that your source and output devices are capable of supporting up to 1080p video resolution for the best visual experience and utilising the full potential of your device for wireless transmission of HDMI stream. It is worth noting that some models of wireless HDMI systems can support 3D video transfer which will definitely come to liking to many lovers of 3D movies. As for the audio signal, the best devices are those supporting 5.1 and 7.1 channel uncompressed surround sound, which is a de facto standard for the audio of Full HD and Ultra HD movies. With that, HDMI models supporting mobile devices as signal sources perform the audio transmission in the format supported by your digital mobile device.
An operating range is crucial to know when it comes to digital signal transmission from the transmitter to the receiver without the signal loss. If you plan to use your HDMI kit to provide video and audio data transmission between devices located on different floors or at a large distance, then we suggest looking to video senders with an operating range of 100 feet or more. If your source and receiver are located close to each other and there is no need to space them far apart, you can easily choose a model with an operating range of up to 30 feet.
Interfaces and Compatibility
Typically, all transmitters and receivers included in a video sender kit have HDMI input and output ports to pair with source and receiving devices. The more such ports are available on the kit, the more devices it can wirelessly connect. Apart from the main HDMI ports, some models offer Mini USB and USB auxiliary ports as well as power connectors and 3.5mm ports for your headphones. It worth mentioning that pairing source devices with receiving ones using the kit maybe not only an issue of physical ports available but also of the operating system installed on your host/source device. However, if you use a device other than a PC, laptop or tablet PC as a source the OS installed is not that important as video senders can be used with almost any devices supporting a wireless HDMI connection.
Q: What is a Wireless HDMI?
A: Wireless HDMI may either refer to the streaming technology or be used as a collective name for the devices that use this technology. Nowadays in most cases, the term is used for the devices that implement this technology. These devices are manufactured as data senders (sources) or kits including a data sender and a receiver. The senders are equipped with one or more HDMI inputs to source the original signal and provide a synchronisation with receivers, which in their turn are equipped with an HDMI output to connect to output devices.
Q: What are the benefits of using Wireless HDMI devices?
A: As it was mentioned the main benefit of using a Wireless HDMI data transfer is that one does not need to lay out cables to connect a source to a receiver. In some cases when there are many cabled devices around laying cables may be inconvenient. However, when you need to transfer an HDMI data stream from a source to a receiver, which are located two or more dozen metres from each other using a cable connection may even result in signal quality degradation. For such cases, the wireless transmission is the optimal and sometimes only solution.
Q: Are various Wireless HDMI devices may have different performance?
A: Yes. Though all these devices use the same principle of wireless transmission of a data stream, they may implement different wireless technologies to perform this task. With Wi-Fi being the most commonly used transmission technology, there are models that use proprietary radio technologies with a higher carrier frequency, such as GigaXtreme, WHDI, HDbitT, and others. These technologies are customized to the manufacturer’s needs, which may be a higher data bandwidth, capability of transmitting the data to two or more receivers from a single source, etc. Therefore Wireless HDMI devices mostly differ in maximum range (usually up to 30 metres) and bandwidth of data transfer. The maximum bandwidth supported defines the list of video formats a certain device can transmit. For example, transmission of 1080p or FullHD video requires higher bandwidth than 1080i or 720p. Thus, you need to check the supported video formats with the device specifications.
Q: Are there any other differences Wireless HDMI devices?
A: First of all wireless HDMIs are produced in different sizes ranging from quite bulky (almost of a gaming console size) to very compact and portable ones, which you can carry in your pocket (as small as a USB thumb drive). These devices may also have additional manufacturer-specific features.
Q: Are there any limitations of Wireless HDMI to wired HDMI transfer?
A: The main limitations for this type of devices and the technology, in general, are transmission range, data transmission bandwidth and a number of receiving devices a source can transmit the media stream to and synchronise with at once.
1. Andy Betts Wireless HDMI: What It Is and Why You Need to Start Using It, MakeUseOf. November 5, 2015.
2. Bert Markgraf How Does Wireless TV Work? Chron.
3. Wireless HDMI, Wikipedia. September 23, 2016.
4. THE WIRELESS HDMI GUIDE, Airtame.