microphone
US /ˈmaɪ.krə.foʊn/
UK /ˈmaɪ.krə.foʊn/

1.
microfone
an instrument whereby sound waves are caused to generate or modulate an electric current usually for the purpose of transmitting or recording sound (as speech or music)
:
•
Please speak clearly into the microphone.
Por favor, fale claramente no microfone.
•
The singer adjusted the microphone before starting the song.
O cantor ajustou o microfone antes de começar a música.