The best wireless HDMI to send an image to another room with quality and without pulling a cable

Sometimes we want to see the content on our mobile phone or computer on a larger screen, but it is not always easy. Smart TVs usually have everything you need to do it wirelessly, but older ones don’t. The good news is that there are wireless HDMI solutions that can be very useful, and our recommendation is the Vovipo WTR21 for everything it offers. The price could vary. We earn commission from these links He Vovipo WTR21 It is a wireless HDMI connector that is especially interesting to us because it is usually affordable and offers 4K resolution, so it is also designed to be used on more current televisions or monitors. It is also worth noting something quite practical, and that is that this model incorporates a screen that allows us to know the status of the connection and the strength of the signal. The highlights MODEL PERFECT FOR YOU THE BEST WORST PRICE FROM Vovipo WTR21 If you want to transmit the signal from a laptop to the TV without cables. It offers 4K resolution and has a screen with connection status indicators and signal strength. Does not come with cable adapters. €59.99 Lemorele R1010 If you are looking to connect two screens at the same time, such as a TV and a projector. Includes one transmitter and two receivers, as well as cable adapters. It only offers Full HD resolution. €129.99 Pousild If you want a simple, cheap model and you are close to a Full HD television. It is a basic model and moderately priced. It only offers Full HD resolution and does not have a screen or adapters included. €49.99 J-Tech Digital WEX200V3 If you need to connect several devices that are at a great distance. It offers a fairly large distance, even with obstacles and walls in the way. Its resolution is Full HD and the price is quite high €224.32 Vention TZ-ADP If you want a fairly complete model, with more range and the possibility of connecting several screens or receivers. It has an LED display, has thermal control and offers options with several receivers, up to a maximum of four. It only offers Full HD resolution. €139.99 Lemorele P400 If you want to send an image from a mobile phone, tablet or laptop with USB-C to a TV or projector. It is very versatile. You need the USB-C port on the device to have video output. €65.99 Why they stand out Of all the wireless HDMI kits, we choose the Vovipo WTR21 for everything it offers at a reasonable price. Next, we will review the main characteristics of these devices so that you are clear about what criteria to follow when choosing one model or another. The maximum range. The first thing we must be clear about is the distance at which we are going to have each of the wireless HDMI kits, since not all of them offer the same maximum range. In addition, it is important to know both the maximum distance and whether they are capable of transmitting the signal through physical obstacles such as walls, since some models require direct vision between both connectors for them to work correctly. The resolution and refresh rate supported. Generally, the wireless HDMI kits that we will find in stores will offer Full HD or 4K resolution. Depending on the use we want to give it, it is advisable to choose one or the other. For example, if your idea is to work or use some programs from the couch, a Full HD resolution will be enough. On the other hand, if you want to play multimedia content, the resolution should be 4K (as long as the television is compatible). The same goes for the refresh rate. If you are going to watch movies and series or use some applications, a rate of 60 Hz will be enough. But if you are looking for a much smoother experience because you are going to play video games, it is recommended that the rate reach 120 Hz. The latency. Latency is the time it takes for the image to be played from a device where we have the main HDMI connector installed until it reaches the screen where we have the second connector. And since we are talking about wireless devices, it is practically inevitable that we will encounter some latency. If you are going to watch a movie, latency will not have as big an impact on having a good experience. On the other hand, if you are going to play video games, especially if they are competitive, it is advisable that the wireless HDMI connector have a very low latency. The frequency band. The frequency band is the channel through which data will be sent between both HDMI connectors. Normally we will find 5 GHz and 60 GHz frequencies, and each of them has its advantages and disadvantages: 5 GHz: is the most common, offers good speed and is capable of passing through physical objects such as walls. 60 GHz: In models that work at 60 GHz, the speed is usually higher, but they require direct vision between transmitter and receiver, so they normally do not pass through walls. Connectivity. Some wireless HDMI kits come with a single HDMI port to function, while others are more complete and offer the possibility of connecting them to devices through other ports, USB-C being the most common. It is important to be clear about what devices we are going to use. If it is a laptop, it is possible that (almost) any model will work for you. On the other hand, if you are going to connect a mobile phone, you will need it to have a USB-C port or an adapter. Transmitters and receivers. These types of devices generally come with a transmitter and a receiver, although several may come. In any case, it must be taken into account that: Transmitters capture the signal from the source device and send it to the … Read more

Meta and Google talk about nuclear fusion for the future; The short-term reality is that they are pulling natural gas

Silicon Valley has an undeniable gift for selling the future. If one listens to the great technological leaders, Artificial Intelligence will soon be powered by energy sources worthy of a science fiction novel. Goal just signed an agreement to obtain solar energy directly from satellites in space, while figures such as Sam Altman, CEO of OpenAI, They assure that nuclear fusion It is the great “silver bullet” that will save the sector. However, it is enough to look down from the stars to the earth to find a much smokier reality. To feed the insatiable “energy monster” that AI has unleashed, big technology companies are turning to the technology of the past. As explained from Axiosthe race to dominate artificial intelligence is accelerating at such a dizzying pace that the industry’s ambitious climate goals are taking a discreet backseat. Today, the world’s most sophisticated cloud is being built on a foundation of fossil fuels. The numbers speak for themselves. Far from nuclear fusion laboratories, the actual infrastructure being built in the United States tells a story based on natural gas. Meta’s case is perhaps the most graphic, as detailed in Bloomberg, US utility Entergy Corp. has had to increase its capital spending plan by almost a third, reaching $57 billion, to build 10 new natural gas plants dedicated exclusively to powering the new data campus Hyperion of Meta in Louisiana. This gigantic complex will require more than 7 gigawatts of power, the equivalent of the output of seven large nuclear reactors. Google, the historic champion of clean energy, is not far behind either. An investigation by the market intelligence firm Cleanview has brought to light Google’s partnership with the company Crusoe Energy to develop a huge data center in Texas named “good night“. The project includes a 933-megawatt gas plant built outside the traditional electrical grid. The end of the green utopia? The environmental impact of this installation is not minor, how to explain Guardianthe plant will emit up to 4.5 million tons of carbon dioxide per year. To put it in perspective, this exceeds the annual emissions of the entire city of San Francisco or is equivalent to putting 970,000 additional gasoline cars on the roads. Given this, Google’s official position is cautious. Chrissy Moy, company spokesperson, does not deny the project before the mediaalthough it clarifies that, although they are linked to the campus, they still “do not have a contract in force” to acquire energy from said gas plant. How have they developed in oil pricethe origin of this sudden gas rush is that data centers are putting local power grids under unprecedented pressure, causing consumers to bear the cost of this increased energy competition. To overcome the slow expansions of the public network and the endless waiting lists for permits, Wired points out that data center developers They are choosing to generate their own energy “behind the meter” (off-grid). And in that fast and private strategy, gas is king. Their green mask falls off. This is a serious blow to Silicon Valley’s green image. As you remember GuardianGoogle was once a pioneer in promising net zero emissions by 2030. However, the company itself has had to admit that its carbon emissions have increased by 48% in the last five years due to data centers. Now, those environmental objectives have been internally downgraded to the category of climate moonshots (speculative projects very difficult to achieve). The underlying problem is purely physical. As he reflects Impakterenergy—not chip shortages—is emerging as the real bottleneck for AI. Traditional renewable sources are intermittent, and large language models require devouring electricity 24 hours a day. A systemic problem that is already raising blisters in Washington. The return to natural gas is not an isolated anecdote of a couple of companies. There are currently about 100 gigawatts of gas-fired power in development in the United States destined for data centers alone. Microsoft just signed a deal with oil giant Chevron in Texas, and permits for OpenAI’s Project Jupiter in New Mexico suggest it could emit up to 14 million tons of greenhouse gases annually (triple that of Google’s project). Faced with this fossil avalanche, Democratic senators such as Whitehouse, Van Hollen and Heinrich have sent letters demanding formal explanations from leaders of Meta and OpenAI for putting the country’s climate commitments at risk. The industry defends itself by arguing that it is a necessary evil. Cully Cavness, president of Crusoe, explained that natural gas it is a critical “bridge” and the only power source available today capable of scaling at the pace AI demands. Next-generation clean alternatives will take decades. Meta’s promising agreement to receive solar energy from space will not have a pilot satellite until 2028and its commercial viability is not expected, at best, until the 2030s or 2040s. The same happens with commercial fusion reactors: they will not dump a single watt into the grid well into the next decade. The great paradox of AI. Business magazines celebrate the financial success of this revolution. In their profiles of the most influential companies, TIME relates how Google, under Sundar Pichai, has reached a $4 trillion market value driven by its advances in AI, while Mark Zuckerberg celebrates record ad revenue on Meta by promising systems that will soon “understand the unique personal goals” of each user. Silicon Valley promises that this same Artificial Intelligence will one day help us solve humanity’s great challenges, including climate change itself. But the current paradox is inescapable: in the real world of 2026, to train the most brilliant and avant-garde artificial mind ever created, human beings still inevitably need to set natural gas on fire. Image | Photo by Tasos Mansour on Unsplash Xataka | Solving the mystery of the red balls on high-voltage cables: a simple way to save lives

The Chinese industry has been pulling the prices of solar panels for years. Now 30% of its workers are on the street

Chinese solar panel manufacturers achieved a crushing domain of the industry with a relentless recipe: mass production, constant improvements and increasingly low prices. Now that they have left out European and American competitors, The whole world depends on its technology. However, this apparent success story hides an internal crisis with serious consequences: a INSUSTANIBLE PRICE WARmillionaire losses and the silent dismissal of tens of thousands of workers. An unprecedented overproduction. Between 2020 and 2023, the Chinese government redirected huge resources of the real estate sector, then in decline, towards what it called the “three new growth industries”: solar panels, electric cars and batteries. This bet unleashed a fever of new factories and Colossal dimensions solar parks. The result was an unprecedented overproduction. According to Reutersthe world now produces twice as much solar panels it needs, most manufactured in China. This market saturation caused a collapse of prices to the point that many companies They started selling below their costs To give out to the stock, a situation that has been aggravated by the war of tariffs with the United States. The Chinese solar industry lost the amazing figure of 60,000 million dollars last year. The human invoice. The least known consequence of this crisis, despite the fact that companies They asked the government for a rescueIt has been a drastic reduction of personnel. The financial reports of the five largest photovoltaic companies in China (Longi Green Energy, Trina Solar, Jinko Solar, Ja Solar and Tongwei) reveal a 31% reduction of their templates, which means that they left 87,000 employees on the street. This figure is a mixture of direct layoffs and non -renovations due to salary or hours cuts. Diseases are a politically very sensitive issue in China, where employment is seen as the key to social stability. Therefore, none of the big companies have officially announced these massive template reductions. With the exception of Longi, who recognized a 5% cut of the template. Beijing tries to stop the bleeding. The main producers created an entity similar to OPEC to control prices and offer, But it didn’t go well. Before the disaster, the Chinese government took action on the matter. In early July, President Xi Jinping asked for the end of the price war. In addition, a fund of 7,000 million dollars was created to buy and close about a third of the lower quality solar panels in the industry. Is it enough? According to a Jefferies analysis, it would be necessary to eliminate at least one 20-30% capacity manufacturing for companies to be profitable again. However, many Chinese provincial governments, evaluated for their ability to create employment and economic growth, are reluctant to apply drastic cuts that affect their local companies. Image | Jinko Solar In Xataka | Neither in Taiwan, nor in China: the plan to manufacture the purest semiconductors in the world is to go to space

Russia is beginning to run out of the weapons inherited from the USSR. So he is pulling those of North Korea

The vast Soviet arsenals that Russia used at the beginning of her invasion of Ukraine They are running out. According to An analysis From the Institute of the kyiv Economy School, shipments from the main Russian military stores have plummeted: from 242,000 tons in 2022 to about 119,000 tons planned by 2025, practically the levels prior to the conflict. The context of the problem. For decades, Russia maintained huge armament deposits Inherited from the Soviet Union. At the beginning of the war in Ukraine, Moscow handed off these stocks to quickly equip their forces. T-72 and T-80 tanks of the 70s were reconditioned and sent to the front. Even some T-54, who entered production in the late 40s, have seen fight in Ukrainian territory. The current reality. He analysis It reveals that the best quality equipment and easier restoration was the first to be mobilized. Pavlo Shkurenko, an institute analyst, explains that now “Russia is sending less material for reconditioning and repair than we know they can handle repair stations.” This fall would suggest that the reserves have dropped the level significantly. The desperate solution. To compensate for this shortage, the Kremlin He has massively resorted to his Asian allies. The data show that 52% of the shipments marked as “explosive materials” towards the Russian arsenales in 2024 came from Nakhodka, a port in the sea of Japan used by North Korea. These shipments went from zero before the war to 250,000 tons in 2024. According to Ukrainian military intelligence chief Kyrylo Budanov, 40% of all Russian ammunition now comes from Pyongyang. Beyond North Korea. He analysis It also identifies about 13,000 tons of explosive material that, due to its entrance point near the Caspian Sea, probably come from Iran. Meanwhile, China has become the key supplier of the Russian defense industry, even if it does not send direct military aid. Shipments from the Eastern Border Regions of Russia towards military production centers have almost doubled since 2021, exceeding 3 million tons. The strategic dilemma. A priori, it seems a lie that Russia depends both on its external partners, especially considering that they want to breastfeed their self -sufficient image. Franz-Stefan Gady, Viennese military analyst, suggests that Moscow is using North Korean ammunition to maintain the rhythm of fire on the front while reserving higher quality Russian ammunition for possible future conflicts with NATO. What is coming. Russia plans to invest huge sums In rearme futurebut its current situation exposes the limitations of its local military capacity. The war that Putin imagined as a demonstration of force has become a resistance test in which he has ended up depending on allies and an increasing economic cost. Cover image | Kremlin In Xataka | We already know what Russia’s trick is to multiply its drones: it is called “cooling units” and comes direct from China

Desperate for competing with Chatgpt, Google has a plan for Gemini to be everywhere: pulling wallet

We already know how many monthly users GEMINI has: the same as chatgpt in a single week. 350 million people using Google AI compared to the almost one and a half of OpenAi. And if we know something about Google, it has never liked to have competitors. He Progressive replacement of the Google Assistant By Gemini it was a statement of intentions: Google wanted Gemini to be in absolutely all phones. And no, the pulse has not shaken to get the wallet and force the pre -installation of this app. Google, Gemini and Samsung. A profitable exchange. Samsung is, by far, the manufacturer who More is betting on artificial intelligence in mobile territory. And the vast majority of these functions are behind Google, responsible for the Gemini Nano model of which it uses One UI 7. The a priori agreement could seem the classic Google-Manfabricaro android relationship, but Monopoly trial who is facing Google has made it clear that there is something else in between. Google paid Samsung to pre -install Gemini. Peter Fitzgerald, vice president of platforms and associations of Google devices, testified in the Federal Court of Washington as part of the antimonopoly case of the Department of Justice, According to Bloomberg. In his statements, he acknowledges that Alphabet Inc. paid Samsung Electronics Co. to preinstall Gemini on the company’s phones and devices. This contract, with a minimum duration of two years, establishes fixed monthly payments for each device with pre -installed Gemini, and a percentage of the income obtained by Google with the subscription to Gemini’s payment modalities. Paying to install is not legal. One of the keys to this case is in the precedents. In the past Google paid its partners so that its search engine was predetermined, something that was declared illegal. Since 2020, Neither Google Chrome nor the search for Google are the default options on Android. Google also paid Samsung 8 billion dollars for Google Search, Play Store and Google Assistant to be predetermined in Galaxy mobiles. The federal jury analyzed the case ruled that Google I was abusing his power with these policies. The judge will now have to determine whether Gemini’s pre -installation in exchange for money was legal or not. Gemini, Gemini, Gemini. Gemini is not just Google’s artificial intelligence, it is one of the largest doors at the income level that has been opened to the company in recent years. Although Sissie Hsiao herself is still a service without advertising, charge on Google at the head of Gemini, she has acknowledged that Google is the company to “monetize Gemini with ads as soon as possible. “Motorola cannot get rid of its obligations with Google and that is why they cannot change the predetermined assistant on the device.” Similar practices with other brands are reflected in the framework of the same antitrust judgment. Google’s contract with Motorola (Lenovo Group Ltd.) prevented perplexity AI as predetermined assistant on its devices. “A gun in the temple” according to Dmitry Shevelenko, business director in Perplexity. A trial that can change everything. The American justice, together with the constant persecution of Europe to Google for monopoly practices, have managed to make Android a somewhat more open system to third -party developers. If it ends up declaring illegal that Google Preinstal Gemini as an assistant, Google’s plan to compete from you to you with a GPT that quadruples its active users will be difficult to execute. Image | Xataka In Xataka | Google Lanza Gemini 2.0 with a gift for users: free access to its reasoning model

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