microphones and speakers

earphones

earphones [noun]

a piece of electronic equipment that you put over or in your ears so that you can listen privately to radio, recorded music, etc.

US /ˈɪr.foʊnz/ 
UK /ˈiə.fəʊnz/ 
Example: 

a pair/set of earphones

Oxford Essential Dictionary

earphones

 noun (plural) = headphones

Longman Dictionary of Contemporary English

earphone

earphone /ˈɪəfəʊn $ ˈɪrfoʊn/ BrE AmE noun [usually plural]
a small piece of equipment connected by a wire to a radio, ↑personal stereo etc, which you put in or over your ears so that only you can listen to it

Oxford Advanced Learner's Dictionary

earphones

ear·phones [earphones]   [ˈɪəfəʊnz]    [ˈɪrfoʊnz]  noun plural
=  headphones  
Example Bank:
• She was listening to a personal stereo through earphones.

• She was listening to her MP3 player through earphones.

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition
 

earphones / ˈiə.fəʊnz /   / ˈɪr.foʊnz / noun [ plural ]

a piece of electronic equipment that you put over or in your ears so that you can listen privately to radio, recorded music, etc.:

a pair/set of earphones

See picture earphones

See picture music listening

© Cambridge University Press 2013

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