microphones and speakers

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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

ear‧phone /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.