I ordered these for a particular reason: when I talk on the phone it crooks my arm too sharply, and this irritates the nerve in the arm near the elbow, which is still recovering from an insult from an antibiotic last November.
Hardly any earbud style headphones fit my ear canals (Apple-supplied ones do not fit at all).
So I’m hoping these might work and allow phone calls to be less troublesome for nerves.
UPDATE: YES, these work well for my ears. The earbuds fit well and are far more comfortable than the stock Apple offering included with the iPhone