There is an entire thread on them, being one of the most underrated IEMs for the money. I agree (so do many of those posting in the thread), others (not a large number) do not. I like them a lot, and they have the built-in mic, etc., for the iPhone. But make sure you check the buyer feedback. There are several sellers who have "used" (my guess is B box, aka returned) versions, and they are just like new, sans box, etc. Again, all 5 pair I have purchased as still going, and one went to my teenaged daughter. Again, much better way to help your dad. They are IEMs, so they need to be stuck in your ear, but so did the Whoomps.
Also, they can use either the stock tips or Comply T140s or T130s, I favor the latter, in large. And yes, 7Dime is one of them, cause I bought from his (though I see his price is at #39. They were cheaper last week).