Given the price, it's quite possible that the target audience never heard of the real earphones. Those that really go deep into ear channel - like Etymotic, Shure, Ultimate Ears, Sensaphonics (or ACS in Britain).

I've got a pair of these so called noise removing ones...

It's horrible you can hear every movement of the ear phone chords,

and if you are walking with them you can hear the movements of your bones

on the paveement.

Can one be MORE DEAF?