crystal mike vs microphone

crystal mike and microphone both are nouns.

Word	Noun	Adjective	Verb	Adverb
crystal mike	Yes	No	No	No
microphone	Yes	No	No	No

As nouns, microphone is a hypernym of crystal mike; that is, microphone is a word with a broader meaning than crystal mike:

crystal mike: a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage
microphone: device for converting sound waves into electrical energy

Other hypernyms of crystal mike include mic, mike.

crystal mike (noun)	microphone (noun)
a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage	device for converting sound waves into electrical energy