i don't know that he'd do better than the regular apple earbuds at that price range, if he's specifically excluding IEMs. Otherwise the KZs that brent recommended are pretty good, and $20.
My favorite rum drinks:
rum w/ lime juice, symple syrup and cinnamon
rum w/ pineapple/orange juice and cherry bitters
rum
(in all cases, Smith & Cross or Goslings Gold)
you don't even need the app. Hold the selector button for 2 seconds, and it does it in headphone. And Dusty, you have the choice between silence or just background noise elimination.