Rosewill RHTS-11002 Noise Isolating Rosewood Earphones for $9.99 after promo code EMCNEJE222. Shipping is $1.99 for a total of $11.98 shipped. Here is a screenshot for your reference. The earphones feature 10mm neodymium rare earthe magnet driver, 18Hz to 24kHz frequency response, 105dB sensitivity, and 16 ohms impedance. Most places have the earphones for about $24.