i used to use in-ear earphones that fit really well and isolated the outside so i could be fine with 30% or less volume even on the train, but they always broke after a few months and finally broke down and got airpods (been using them for about 9 months with no breakage so far) but their fitting is atrocious and i have to use those plastic attachments that hold them in... nevertheless i now have to be careful i never go above 50% volume because of the lack of isolation.... when i’m in an airplane or train... it’s _very_ hard...