The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

Yeah, I should have brought
my parabolic MICROPHONE.
The Big Bang Theory Season 9, Episode 8

(MICROPHONE FEEDBACK)
The Big Bang Theory Season 9, Episode 16

Full of surprises
with a MICROPHONE in your glasses.
Money Heist Season 1, Episode 6

It's an ultrasonic MICROPHONE
so we can hear the baby's heartbeat.
The Big Bang Theory Season 9, Episode 20

Closer to the MICROPHONE.
The Big Bang Theory Season 4, Episode 2