MEElectronics M6P-BK Sports Sound-Isolating In Ear Headphones for $10.99 shipped.  Here is a screenshot for reference.  The headphones feature a microphone, remote, 9mm drivers with neodymium magnets, 6 sets of eartips (small/medium/large/bi-flange/triple-flange), an airplane adapter, carrying bag, and wire organizer. Most places have it for about $17.