Meaning of MICROPHONE in English

MICROPHONE

/ ˈmaɪkrəfəʊn; NAmE -foʊn/ (also informal mic , mike ) noun

a device that is used for recording sounds or for making your voice louder when you are speaking or singing to an audience :

to speak into the microphone

Their remarks were picked up by the hidden microphones.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.