the galaxy buds have tips on them and you can even change the tips out for 3rd party tips or whatever so that it can give good isolation. if you can outside noisr that means you're on ambient mode, put it into the normal mode without anc and ambient node and with a good fit ot will block out noise as in your regular iem, ANC cancels out sound using a processor which uses pattern, that means regular noises will be canceled out better. this applies to very tws and some will be better than others. ofcourse it's not comparable to b2d because they are twice the price. while the buds have bluetooth, anc, ambient mode, microphones, etc. at that price point some sacrifices will be made. even more expensive tws suffer the same problem, which is bluetooth.