earphone

Từ điển WordNet v3.1 - WordNet Dictionary

noun

electro-acoustic transducer for converting electric signals into sounds;
it is held over or inserted into the ear (Freq. 1)
- it was not the typing but the earphones that she disliked
• Syn:
earpiece, headphone, phone
• Hypernyms:
electro-acoustic transducer
• Hyponyms:
earplug, telephone receiver, receiver