Passengers are raving about this little-known upgrade to Delta's brand new planes

Air travelers are finally learning about Delta Airlines' little-known upgrade as one TikToker's video goes viral on social media. 

Elise Brulotte was traveling in first class on Delta's new A321neo jets when she discovered that she could connect her Apple AirPods to the TV screen using Bluetooth. 

Brulotte captioned the video: 'ABOUT TIME as someone who never bought over-the-ear headphones im freaking out. game changer.'

While the video had the following text: 'Finally! Delta's new plane allows you to watch movies with your Airpods' floating. 

Last year, the company announced it was launching new A321neo jets and had begun to test a new 13-inch high-definition entertainment system that supported Bluetooth connectivity for first-class seats. 

The video has nearly 400,000 views and has watchers either celebrating the new update or noting that United Airlines first introduced the update. 

Many users simply wrote: 'Finally!' while one wrote: 'They ate with this'.

Another user called Delta the GOAT (Greatest Of All Time), while one user cheered for Delta and wrote: 'This is such a win'.

One user also questioned whether the new update was for business or economy class, but the creator did not clarify.  

In the past year, the airlines had been testing the Bluetooth technology to ensure to did not disrupt radio signals and functioned properly across all flights.  

At the time of launch, Mauricio Parise, Delta's vice president of brand experience, said in an interview: 'We need to make sure that as we test Bluetooth that it's stabilized and doesn't get interference.

The first A321neo flew on May 20 from Boston to San Francisco.

Delta's A321neo aircrafts feature a memory foam cushion, increased privacy, extra storage and a larger tray table than the current domestic first seats.

The planes also have high-speed Wi-Fi connection and power outlets, while first-class seats have large privacy dividers between each seat.