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Bluetooth 6.0: What You Need to Know About the Future of Wireless Headphones

Bluetooth got a major upgrade, and it’s already showing up in phones and headphones. Here’s what to expect and what we’re still waiting for.

The Bluetooth Special Interest Group announced version 6.0 of the near-ubiquitous wireless technology in Sept. 2024, adding some major new features that aim to improve Bluetooth’s reliability, security, smoothness and efficiency. It might even get you a greater range between your headphones and phone, as well as longer battery life. 

We’re finally seeing devices arrive with Bluetooth 6.0, including phones from Apple and Google, as well as headphones and earbuds. Here’s what you need to know about Bluetooth 6.0 and how it will affect wireless connectivity for years to come. 

Main improvements of Bluetooth 6.0

Latency

Latency is the time between an audio signal being sent and when you actually hear it. The higher the latency, the more annoying it can be — think of when the sound lags behind the video in movies or games. Most Bluetooth (5.0 and newer) devices have latency somewhere between 50 to 100 milliseconds, depending on gear and configuration, which is noticeable to most people. 

Bluetooth 6.0’s new isochronous adaptive layer, or ISOAL, allows devices to break up audio data into smaller chunks for quicker processing. In theory, this has the potential to reduce latency, and it’s possible that we might see latency under 10 milliseconds under ideal conditions, such as close range, no obstacles and no interference. 

We expect that under real-world conditions, the majority of setups will operate at a latency of around 20 milliseconds, which would still represent a significant improvement over Bluetooth 5.x. 

Location tracking and security

One of the new spec’s most buzzworthy features is called Channel Sounding, which provides a significant improvement in the accuracy of device location tracking. It relies on a back-and-forth exchange of data packets between connected devices and a combination of time stamps and frequency analysis, rather than the old, less accurate method of just measuring relative signal strength. 

Channel Sounding is a boon for Apple’s Find My and its Google and Samsung equivalents, offering location accuracy down to approximately 10 centimeters, along with improved resistance to obstacles and interference. It also enables enhanced security for Bluetooth lock systems using a combination of encryption, randomization and location cross-referencing to ensure some random person isn’t unlocking your car or front door. 

Power efficiency and pairing speed

The same features that reduce latency also help with power efficiency: Everything behaves intelligently to use more power for keeping audio and video in sync for things like gaming, and less power for less intensive applications like audiobooks. This flexibility is especially crucial for wireless earbuds, which require the most effective power management due to their compact size. 

The process of scanning for nearby Bluetooth devices is also being upgraded, with decision-based advertiser filtering and monitoring. Advertising in this case doesn’t refer to selling you products. Basically, it’s a set of headphones broadcasting, «I’m a headset, and I’m nearby and ready to connect.»  

Instead of constantly shouting, «Is anyone there?!» to see if there’s anything nearby to connect to, Bluetooth 6.0 devices will keep track when previously paired devices go in and out of range. This should save precious battery life, make pairing quicker and provide smoother multipoint switching.

What Bluetooth 6.0 doesn’t do

Improved Bluetooth sound quality (maybe)

Were you waiting for reliable, wireless lossless audio transmission from your phone to your headphones? Still not there yet. 

Astute readers who note that CD-quality lossless audio transmission requires 1.4Mbps of throughput speed may wonder why Bluetooth 6.0’s theoretical 3Mbps isn’t enough. It’s because much of Bluetooth’s bandwidth is taken up by overhead — a bunch of ancillary data that’s required for secure Bluetooth connections that has nothing to do with audio. While there are some codecs that promise high-quality wireless audio, lossless CD-quality audio remains elusive.

Bluetooth 6.0 does bring the optional long-discussed LC3plus codec, which can transmit up to 24-bit and 96kHz audio. However, unlike «regular» LC3, this is an optional codec that has a separate licensing fee. That means there will be limited adoption compared to the more popular codecs. Remember, both your device and headphones must be compatible with LC3plus for it to work. How well it works and whether it can reliably transmit 24/96 in the real world remain to be seen.

A future incremental revision of Bluetooth 6.0 promises to add a high-data-throughput feature that will open up usable bandwidth for lossless streaming, potentially by using other frequency bands besides the crowded 2.4GHz band, to achieve speeds of up to 7.5Mbps. That should provide enough headroom to enable high-res audio streams, though it’s unclear if manufacturers will adopt the right codecs for lossless Bluetooth audio via headphones. Given past and current adoption rates for different Bluetooth codecs, it is unlikely to be Apple, and this technology will instead first find its way into lesser-known Android phones.

Where to find Bluetooth 6.0 right now

If you want to get a head start on Bluetooth 6.0 compatibility, there are a handful of devices already shipping (though not all of these are available in the US).

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Technologies

Tim Cook Riffs on Retirement Rumors, AI, Phone Addiction and Trump

The Apple CEO discussed a range of topics on Good Morning America.

Tim Cook isn’t going anywhere just yet — not during Apple’s 50th anniversary celebrations, not with the company preparing to introduce its first foldable phone, not while the tech giant is trying to figure out how to beat the AI race.

In a sit-down interview with Good Morning America host and Pro Football Hall of Famer Michael Strahan this week, Cook, who turned 65 in November, said there was no truth to the rumors that he is considering retiring from Apple. He became CEO of the company in 2011, 13 years after joining from Compaq.

«I love what I do deeply. Twenty-eight years ago, I walked into Apple, and I’ve loved every day of it since,» Cook told Strahan. «We’ve had ups and downs, but the people I work with are so amazing. They bring out the best in me, and hopefully I can bring out the best in them.»

Strahan interviewed Cook during the Apple CEO’s visit to Wadleigh Secondary School for the Performing & Visual Arts in Harlem, where students use Apple technology through the company’s partnership with the nonprofit Save the Music.

Speculation about Cook stepping down has been circulating since last November, when the Financial Times cited unnamed sources saying that Apple was preparing to usher in a new CEO «as soon as next year.» Bloomberg’s Mark Gurman threw water on that report, saying he «would be shocked if Cook steps down in the time frame outlined by the FT.»

During Cook’s tenure as CEO, Apple’s revenue has nearly quadrupled, with the tech giant adding dozens of new iPhone models, several more iPads, and updated Apple Watches and AirPods. This year, Apple has launched several new products, including the MacBook Neo, which at $599 has disrupted the budget laptop market. The company’s first foldable phone could come later this year.

Touch some grass

The GMA interview was short but wide-ranging, including Cook’s thoughts on how much people use their iPhones. Many studies estimate that people across most generations spend at least 4 hours a day on their phones, with millennials and Gen Z spending 5 to 6 hours.

When asked what he worries about most regarding Apple products’ impact on society, Cook weighed in, telling Strahan he doesn’t want people using iPhones «too much.» 

«I don’t want people looking at the smartphone more than they’re looking in someone’s eyes,» Cook said, «because if they’re just scrolling endlessly, this is not the way you want to spend your day. Go out and spend it in nature.»

More on Apple from CNET: 

AI and privacy

Cook told Strahan that AI «can be so positive,» but his response when asked whether he was «worried» about it was fairly flat.

«Technology doesn’t want to be good, and it doesn’t want to be bad,» Cook said. «It’s in the hands of the user and the hands of the inventor.»

Strahan questioned how much of iPhone users’ private lives are feeding Apple’s AI learning machine. Cook told him that because the smartphone is encrypted, Apple doesn’t have access to it. He went on to say: «When we can’t answer a question on your device, we send it to something called private cloud compute, which is essentially a big device in the sky that has the same kind of security and architecture as your phone.»

On its website, Apple says that it «does not use our users’ private personal data or user interactions when training our foundation models.»

To date, Apple has been cautious in diving into the AI scrum. While Amazon, Alphabet, Meta and Microsoft are spending nearly $700 billion combined on AI tech this year, Apple is «only» investing $14 billion.

Trump and tariffs

Cook has been criticized for being too cozy with the Trump administration: donating $1 million to President Donald Trump’s inauguration; giving him a 24-karat gold plaque; and attending a White House screening of Melania, a film about the First Lady.

The Apple CEO told Strahan that he’s «not a political person» on either side.

«I’m kind of straight down the middle, and I focus on policy,» Cook said. «So, I’m very pleased that the president and the administration is accessible to talk about policy.»

One of those policies has been tariffs, which Trump has imposed on many nations to varying degrees during his second term in office, purportedly to pressure companies to shift their manufacturing to the US. The president has largely spared Apple, which promised to invest $600 billion over four years to make more products in the US.

Cook told Strahan that the glass for the front and back of an iPhone will come out of Kentucky by the end of the year, and that 100 million chip engines will be manufactured in Arizona this year. He also noted that 20 billion semiconductors will be made in the US. «We’re a very proud American company, and we want to do as much here as we can,» Cook said. 

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Technologies

Today’s NYT Connections Hints, Answers and Help for March 19, #1012

Here are some hints and the answers for the NYT Connections puzzle for March 19 #1012.

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

Today’s NYT Connections puzzle features another tricky purple category, where words hide inside the clues and you have to dig them out. Read on for clues and today’s Connections answers.

The Times has a Connections Bot, like the one for Wordle. Go there after you play to receive a numeric score and to have the program analyze your answers. Players who are registered with the Times Games section can now nerd out by following their progress, including the number of puzzles completed, win rate, number of times they nabbed a perfect score and their win streak.

Read more: Hints, Tips and Strategies to Help You Win at NYT Connections Every Time

Hints for today’s Connections groups

Here are four hints for the groupings in today’s Connections puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: Children’s stories.

Green group hint: Lucky charms.

Blue group hint: One color, then the next.

Purple group hint: Hidden words relating to music.

Answers for today’s Connections groups

Yellow group: Folk tale characters.

Green group: Good luck symbols.

Blue group: Things that change color.

Purple group: Ending in music genres.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections answers?

The yellow words in today’s Connections

The theme is folk tale characters. The four answers are Chicken Little, Frog Prince, Gingerbread Man and Goldilocks.

The green words in today’s Connections

The theme is good luck symbols. The four answers are evil eye, four-leaf clover, horseshoe and rabbit’s foot.

The blue words in today’s Connections

The theme is things that change color. The four answers are chameleon, mood ring, sunset and traffic light.

The purple words in today’s Connections

The theme is ending in music genres. The four answers are baby blues, pet rock, scrap metal and soda pop.

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Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for March 19, #542

Here are hints and the answers for the NYT Connections: Sports Edition puzzle No. 542 for Thursday, March 19.

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

Today’s Connections: Sports Edition is tricky. Remember that many athletes’ surnames look like common words, so if you’re having trouble sorting the answers, think about whether a particular word could be someone’s last name. If you’re struggling with today’s puzzle but still want to solve it, read on for hints and the answers.

Connections: Sports Edition is published by The Athletic, the subscription-based sports journalism site owned by The Times. It doesn’t appear in the NYT Games app, but it does in The Athletic’s own app. Or you can play it for free online.

Read more: NYT Connections: Sports Edition Puzzle Comes Out of Beta

Hints for today’s Connections: Sports Edition groups

Here are four hints for the groupings in today’s Connections: Sports Edition puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: Football division.

Green group hint: They catch the pigskin.

Blue group hint: College hoopsters.

Purple group hint: Where’s the glass slipper?

Answers for today’s Connections: Sports Edition groups

Yellow group: NFC East teams.

Green group: Hall of Fame wide receivers.

Blue group: Stars in this year’s men’s NCAA tournament.

Purple group: Notable NCAA tournament Cinderellas.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections: Sports Edition answers?

The yellow words in today’s Connections

The theme is NFC East teams. The four answers are Commanders, Cowboys, Eagles and Giants.

The green words in today’s Connections

The theme is Hall of Fame wide receivers. The four answers are Bruce, Monk, Moss and Rice.

The blue words in today’s Connections

The theme is stars in this year’s men’s NCAA tournament. The four answers are Acuff, Boozer, Dybantsa and Peat.

The purple words in today’s Connections

The theme is notable NCAA tournament Cinderellas. The four answers are Patriots, Peacocks, Ramblers and Rams.

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