This should probably go without saying for $12 earbuds, but “noise blocking” does not mean “noise canceling” – these are “noise blocking” in the same sense that a wad of cotton, or your fingers, or a properly-sized bolt would be.
I’m also suspicious about just how special the “SPECIAL DESIGN” is . . .
Just lets you know they’re crap. All IEMs are “noise blocking” lol