B6 189 headphones jack
 

guys - what is the best way to find out what type of headset jack exists in coach on B6 189 to san diego (Airbus A321)

thx

All JetBlue planes have a single, 3.5mm connection for the headphone jack (same as all mobile devices, before some phones started eliminating them)

Note that many phones used 2.5mm jacks.

That has not been the default for many years now, especially as the 4-conductor model (needed to also have a mic on the wire) isn't an option in 2.5mm.

Also, very irrelevant to the initial query.

It was literally part of the answer to the OP question and it was factually incorrect. The actual risk to the OP may be minuscule, but it's a disservice to leave open the possibility of confusion.

There has long been 2.5mm TRRS, otherwise none of the mobile phones would have used it. It is actually still used today for balanced outs in high-end mobile media playback devices.

Show me a consumer "mobile device" (the words used in the initial reply) sold in the past 5ish years that uses a 2.5mm TRRS and that might create a legit risk to the OP.

Making the conversation more complex to offset a risk so small as to be irrelevant doesn't really help anyone. The OP is going to be fine on their flight. We all know that. The rest of this discussion is stupid.

I got the 2.5mm TRRS bit incorrect; they did exist but not on smart phones in recent generations. That doesn't change the result OP's initial query.

If you're convinced of the irrelevance then contact the mods and have them decide rather than appointing yourself arbiter of that. Certainly, I'm not the one who made the "conversation more complex" by introducing unnecessary factual inaccuracies - something you continued to do by claiming 2.5mm headphone+mic plugs never existed. Claiming irrelevance to cover for factual inaccuracy is weak.