Actually the M40x has a detachable cable as well, the M30x and lower do not.

I've had the m50xs since 2015 and in terms of audio quality and bang for the buck you really can't go wrong. If you are looking on the cheap side if you will, then the amazon basics over the ear headphones are worth a look. I've found with headphones, sound is subjective and I've had to buy a few pairs and return them to amazon to find the right ones for me. If earbuds are more your thing, then look no further than the Sony extra bass earbud headset. They have both a wired and Bluetooth version. I forget the model number now. Yes they have bass but it's not too much in my opinion. But the m50xs will give you the cleanest sound.

Sony wh1000xm3. They work great as bluetooth headphones, or with a 3.5mm detachable cable. Good featurs as well as active noise cancellation and the ability to pipe in ambient sound.

I've used extenders or longer third party cables, and they're both very viable options. Doesn't hurt that the app is also quite usable.

This would be a lovely fix, but I'm using Jaws 2018.
When entering my serial number, it says I'm actually allowed to get Jaws 2020, but it then directs me to dealers because (surprise surprise) you can't update your SMA if you're not in the United States. Only thing is, the one dealer it points me at (and it does so like six different times) is one I've never heard of.

@DJEpic
I don't know how long this 40% off deal will be around, but I know this brand well and I can tell you that they are indeed very durable.
https://www.amazon.com/dp/B015R7AFVE/re … S&th=1
I was going to suggest them before but they don't sound as good as they should for the money IMO, even with the amazing build quality, great warranty, and included hard carrying case.
Don't get me wrong they don't sound terrible or anything, just not studio quality and with some added bass.
The comfort is also not great when wearing them for a long time unless you buy the better cushions separately.
But for less than 90 bucks?  I really can't deny it's worth it..!

@defender, Ah, darn. Just checked and was alerted that the item was out of stock. Oh well.
Is there anything as durable but like the Bose QC35s? I can't begin to tell you how much I've heard about it. It seems on the expensive side, but if it's gonna last me 6 years plus, then I'd say that's worth it IMO.
Again, I'm looking for headphones that can really withstand being bumped around in a backpack with a computer and books being taken and put back in every hour or so.
If I was going to get the QC35s, should I bother getting the 2nd version, or does the first suffice well enough?

So, I got the phillips fedilio x2HR after reading about audiophile grade headphones, and looking at the various options available. If you want really high quality audio, don't mind a pair of very large, bulky headphones, and the open back design, these are fantastic. Even with shitty laptop audio, I can hear details I never knew were there, and my previous headphones were high res audio as well. They also have this gell in  the drivers, where the sound of high frequencies is massively softened so even if you turn up the volume, sound doesn't fatigue the ears or cause a headache, or feel like a knife through the brain.

I'll also recommend the Sony WH1000XM3, although the XM4 is expected to release sometime this year, so it may be worth waiting for - if nothing else, you could get a pair of the XM3 for cheaper when that happens, although they regularly go on sale these days.

The Bose NC 700 is also great, but I feel it's meant for travel-based usage rather than entertainment purposes (i.e.: sitting at home and enveloped in your own world). Bose has always been known for the grab-and-go appeal of their premium active-noise canceling headphones, so I'd make that distinction if you really want to spend that kind of money on headphones.

The QC 35 II is great, but there are some rumors going around that Bose has throttled ANC performance through firmware updates. Though the NC 700 wasn't released as a replacement for or treated like it was "better" than the QC 35 II, I have encountered several forum posts, articles, and YouTube videos that have discussed this. I don't know the validity of such rumors, but thought I'd put it on your radar.