earphone

earphone
    n 1: electro-acoustic transducer for converting electric signals
         into sounds; it is held over or inserted into the ear; "it
         was not the typing but the earphones that she disliked"
         [syn: {earphone}, {earpiece}, {headphone}, {phone}]
    

30 Moby Thesaurus words for "earphone":
      acoustical network, capacitor speaker, coaxial speaker, cone,
      crossover network, diaphragm, dynamic speaker,
      electrodynamic speaker, electromagnetic speaker,
      electrostatic speaker, excited-field speaker,
      full-fidelity speaker, headphone, headset, high-fidelity speaker,
      high-frequency speaker, horn, loudspeaker, low-frequency speaker,
      midrange speaker, monorange speaker, moving-coil speaker,
      permanent magnet speaker, speaker, speaker system, speaker unit,
      triaxial speaker, tweeter, voice coil, woofer