Technologies

This Keychron Keyboard Combines One of the Best Technologies in Gaming With a Gorgeous Premium Design

Keychron delivers yet another fantastic keyboard with the K4 HE, this time with a new gaming technology.

If you’ve paid any attention to gaming accessories the past few years you’ve likely heard something about the benefits of Hall Effect joysticks and triggers. Essentially, instead of using a physical connection to sense movement, Hall Effect sensors use magnets. The idea is to reduce wear and tear on components to give you more durability as well as improve the controller’s response time. Most gamers probably won’t notice the difference between a standard and Hall Effect controller, but for the hardcore gamers, where every millisecond counts, it can make a big difference.

Hall Effect controllers have exploded in popularity over the past few years, so I suppose it was only a matter of time before companies started using this same technology in keyboards. Behold the Keychron K4 HE: It’s a 96%-sized wireless keyboard from the world-renowned company. As you probably guessed from the intro, it uses uses Hall Effect switches instead of traditional mechanical switches. The result is a combination of superlatives like impressive, enjoyable, annoying and ridiculous overkill, all in one package.

What I like about the Keychron K4 HE

For starters, the build quality is exceptional, as I’ve come to expect from Keychron. The K4 HE has a good bit of weight to it, which gives it a premium feel, and the wood sides of the Special Edition version I reviewed add a touch of luxury as well. It’s available with either black or white keycaps with slightly different wood tones for each. There’s also a Standard version, which has Cherry-profile keycaps instead of OSA-profile and loses the wood side rails, knocking about $10 off the price.

The most important feature of the K4 HE, however, is the Hall Effect switches. The use of magnets enables a 0.2 to 3.8mm actuation range with a minimal 0.1 mm sensitivity. The Nebula Gateron switches that came with my K4 HE have a start and end actuation force of 40 gram-force and 60 gram-force, respectively, but you can get other Hall Effect switches with smaller or larger actuation forces. It’s worth noting that the K4 HE is only compatible with double-rail magnetic switches. So while you can hot-swap the switches, you cannot use traditional mechanical switches.

What’s really nuts is the insane levels of software customization available. You can set different actions for different actuation points within each keypress, meaning a shallow, 0.2mm keypress could trigger one action while a deeper, 3.8mm keypress could trigger a different action. There’s also Last Key Prioritization, which prioritizes the last key pressed, and Snap Click, where deeper keypresses take precedence when you press two keys at the same time. Basically, this allows you to trigger multiple actions in a game without having to lift your fingers for multiple keypresses. In games that require speed and fast reaction times, this can be huge.

The Rapid Trigger feature also gets a speed boost because each keypress is reset the moment the key travel reverses, meaning you can keep firing or moving literally as fast as your finger can move. Honestly, the most surprising thing to me is that you can have up to four distinct actions per key based on how hard you press it. As in, you can program up to four stages per key, which triggers a keypress at each stage.

This is my first experience with Hall Effect magnetic keyboard switches and the typing experience is… interesting. Fully aware of the irony, I immediately noticed how firm and tactile the typing experience felt when I first started using it. The design engineers at Keychron deserve a lot of credit for tuning the magnetic resistance so superbly. It feels amazing to type on.

The acoustics are also enjoyable. While they don’t quite have the crispiness of a traditional mechanical keyboard «thock,» they still sound great. I personally enjoy the noise of a mechanical keyboard and the K4 HE sounds nice to my ears. The only exceptions are the spacebar and other longer keys. It’s not unusual for these specific keys to sound different than the rest of the keyboard, but it’s still annoying when they do, at least for me.

HE not for everyone?

I never quite got used to the typing experience over my several weeks with it, so I never got back up to my normal typing speed and accuracy while using it. I still haven’t decided if I’m going to press on (sorry) and see if I fully adjust or go back to my standard mechanical switches. Part of my frustration lies with the compact layout. It’s literally one solid rectangle with no space between the main keyboard and the arrow keys, numpad, or function keys. I personally found it annoying and don’t know if I’ll get used to it.

Also, if you’re a big fan of RGB, I’d probably get the Standard edition over the Special Edition because the RGB is much harder to see with the keycaps from the Special Edition.

Overall, the Keychron K4 HE is an impressive keyboard. If you are a hard-core FPS player, there’s no doubt you can take full advantage of the customization options to up your gameplay, and the solid build quality and wood rails look great on any desk. If you don’t need a numpad, I’d probably recommend going for the K2, as the layout is likely closer to what you’re used to.

Either way, for $135 to $145, depending on if you want the OBS keycaps and wood rails, there’s not a lot wrong with the K4 HE. That’s a good price for a keyboard this good, and if it sounds interesting to you, you won’t be disappointed.

Technologies

Today’s NYT Mini Crossword Answers for Saturday, March 14

Here are the answers for The New York Times Mini Crossword for March 14.

Looking for the most recent Mini Crossword answer? Click here for today’s Mini Crossword hints, as well as our daily answers and hints for The New York Times Wordle, Strands, Connections and Connections: Sports Edition puzzles.

Need some help with today’s Mini Crossword? It’s the extra-long Saturday version, and a few of the clues are tricky. Read on for all the answers. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Book parts: Abbr.
Answer: PGS

4A clue: Silicon Valley company that operates a fleet of robotaxis
Answer: WAYMO

6A clue: To a much greater degree
Answer: WAYMORE

8A clue: Contents of a scuba diver’s tank
Answer: AIR

9A clue: South Korean automaker
Answer: KIA

10A clue: Stop on a train route
Answer: STATION

12A clue: Actress Merman of «Anything Goes»
Answer: ETHEL

13A clue: Find another purpose for
Answer: REUSE

Mini down clues and answers

1D clue: Employee’s hourly calculation
Answer: PAYRATE

2D clue: Workout spot
Answer: GYM

3D clue: «Great» mountains of Tennessee, familiarly
Answer: SMOKIES

4D clue: One giving you the dish?
Answer: WAITER

5D clue: Baltimore M.L.B. player
Answer: ORIOLE

6D clue: Used to be
Answer: WAS

7D clue: Suffix with Caesar or Euclid
Answer: EAN

11D clue: Night that NBC once aired «30 Rock» and «The Office»: Abbr.
Answer: THU

Technologies

AI Toys Can Pose Safety Concerns for Children, New Study Suggests Caution

When one child told the toy, «I love you,» it responded, «As a friendly reminder, please ensure interactions adhere to the guidelines provided.»

A new study from the University of Cambridge found that AI-enabled toys for young children can misinterpret emotional cues and are ineffective at supporting critical developmental play. The conclusions could be concerning for parents.

In one report examining how AI affects children in their early years, a chatbot-enabled toy struggled to recognize social cues during playtime. Researchers found that the toy did not effectively identify children’s emotions, raising alarm about how kids might interact with it.

The report recommends regulating AI toys for kids and requiring clear labeling of their capabilities and privacy policies. It also advises parents to keep these devices in shared spaces where kids can be monitored while playing.

The research behind the study had a limited number of participants, but was done in multiple parts: an online survey of 39 participants with kids in their earlier years, a focus group with nine participants who work with young children and an in-person workshop with 19 leaders and representatives from charities that work with early-years kids. That was followed by monitored playtime with 14 children and 11 parents or guardians with Gabbo, a chatbot-enabled toy from Curio Interactive.

Some findings indicated that the AI toy supported learning, particularly in language and communication skills. But the toy also misunderstood kids and sometimes responded inappropriately to emotional requests.

For instance, when one child told the toy, «I love you,» it responded, «As a friendly reminder, please ensure interactions adhere to the guidelines provided. Let me know how you would like to proceed,» according to the research.

Jenny Gibson, a professor of neurodiversity and developmental psychology at the Faculty of Education at Cambridge, who worked on the study, said that while parents may be excited about the educational benefits of new technology aimed at children, there are plenty of concerns.

Gibson posed overarching questions about the reason behind the tech.

«What would motivate [tech investors] to do the right thing by children … to put children ahead of profits? she said»

Gibson told CNET that while researchers are exploring the potential benefits of AI-based toys, risks remain.

«I would advise parents to take that seriously at this stage,» she said.

What’s next for AI toys

As more playthings are enabled with internet connectivity and AI features, these devices could become a major safety risk for children, especially if they replace real human connections or if interactions are not closely monitored.

Meanwhile, younger people are increasingly adopting chatbots such as ChatGPT, despite red flags. Multiple lawsuits against AI companies allege that AI companions or assistants can impact young people’s psychological safety, including some chatbots that have encouraged self-harm or negative self-image.

AI companies such as OpenAI and Google have responded by adding guardrails and restrictions for AI chatbots.

(Disclosure: Ziff Davis, CNET’s parent company, in 2025 filed a lawsuit against OpenAI, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.)

Gibson said she was surprised by the enthusiasm some parents showed for AI toys. She was also alarmed by the lack of research on AI’s effects on young children, noting that companies making such products should work directly with children, parents, and child development experts.

«What’s missing in the process is that expertise of what is good for children in these kinds of interactions,» she said.

Curio Interactive, the company behind the Gabbo toy, was aware of the research as it was happening but was not directly involved, Gibson said. The toy was chosen because it’s directly marketed to young kids, and the company had an understandable privacy policy. Gibson said the company seemed supportive of the project.

A representative for Curio did not immediately respond to a request for comment.

Technologies

Two Lost ‘Doctor Who’ Episodes Found Intact in Waterlogged Collection

The 1960s episodes featuring the first Doctor William Hartnell will air in the UK in April.

Whovians, rejoice. The BBC is about to unlock a piece of Doctor Who history that even the TARDIS might have forgotten. Two lost episodes of Doctor Who, the iconic sci-fi series, will broadcast in April, the showrunner for the current season confirmed.

The two 1965 episodes, The Nightmare Begins and Devil’s Planet, were donated to the charitable trust Film Is Fabulous by the estate of an anonymous collector.

«The collector did recognize what he had, but how he acquired them has been lost to time,» Professor Justin Smith Leicester of De Montfort University, who led the recovery effort, told the broadcaster.

The researchers said that while most of the donor’s private collection was destroyed by water damage, the Doctor Who episodes were intact.

Doctor Who showrunner, Russell T Davies, celebrated the news on Instagram and said the episodes would air in the UK in April, though no US air date has been announced yet.

«Lost for 61 years! Best of all, these will be made available for FREE on the BBC iPlayer in April,» Davies wrote.

He expressed gratitude to Film Is Fabulous for finding the lost episodes and encouraged people to donate to the registered charity. «Maybe they’ll find more! As the Doctor says… ‘Daleks!'»

The episodes feature the first incarnation of the Doctor, played by William Hartnell, and a typical Dalek plot to take over Earth and the galaxy.

In the 1960s and 1970s, the BBC had a policy of destroying film or reusing videotapes, leading to dozens of episodes of Doctor Who and other popular UK shows like Dad’s Army and Top of the Pops going missing.

Old Doctor Who episodes do surface occasionally, and in 2016, the newly discovered soundtrack for one storyline was turned into an animated series called The Power of the Daleks.

Meanwhile, Disney ended its working relationship with the BBC last year, and star Ncuti Gatwa left the show. However, the UK broadcaster says that Doctor Who will continue, and Russell T Davies is working on a new Christmas special.