It's really tough to pick headphones for others because we can each have different hearing challenges, and headphones might 'fit' some folks better than other. Even the 'tank style' ear-cup can be more comfortable for some due to their hear size and/or protrusion.
When it comes to headphone selection I have a couple of strong opinions that are much like those I share for someone shopping for a metal detectir. Don't go cheap! Cheap and inferios headphones woun't be comfortable. They can flop around and easily slip off your head if you bend over. They might pinch the ears. Often they don't block out enough outside noise. And the audio quality might be crappy, and the durability even worse.
Instead, shop for and invest money in a quality-built headphone that is comfortable, has good volume controls for each ear (because we can hear better or worse in one than the other), and that don't flop, that do block out the outside surrounding noise, and that sound good to you. Each detector can have a different audio all its own, such as the standard audio loudness or audio tone/pitch, and some headphones work better for some detectors than others.
So, I won't tell you what you need to buy, but I will suggest what I use, and why, and encourage you to consider these.:
I have had impaired hearing in my left hear since Vietnam. I lost most of the hearing in my right ear after a fall in 2010 where I ruptured my eardrum, then had infection and it healed with scar tissue. I have a hearing aid for my right ear that I haven't used in about 11 months, but need to as my overall hearing, both ears, has progressively declined. Whatever you do .... do get old and fall apart!
My main-use headphones for the past many, many years have been the Killer B 'Wasp' model. My 'backup' headphones have been of equal quality and performance, the SunRay Pro Gold. These have slight cosmetic differences but function virtually identical, since they are made with the same parts, same speakers, and by the same manufacturer, B&B Distributors.
Since last October I have mainly been using the White's ProStar headphones. They are as comfortable as the others I use, and maybe just a bit more so because they use the 'tank' style ear-cup, similar to the Killer B 'Hornet' model. I have enjoyed the ProStar headphones so well that my Killer B 'Wasp' and SunRay 'Pro Gold' headphones became by 'back-up' headphones. The ProStar headphones are made by White's, at White's, and have a Lifetime Warranty. From White's that means a lot.
If you have a local dealer to visit, check out several headphones for comfort and use a detector, such as your own MXT, to hear how it performance and how well you feel about the audio quality and comfort..
Monte