squawk box vs squawker

squawk box and squawker both are nouns.

Word	Noun	Adjective	Verb	Adverb
squawk box	Yes	No	No	No
squawker	Yes	No	No	No

As nouns, squawk box and squawker are synonyms defined as:

squawk box and squawker: the loudspeaker on an intercom or public address system

Other synonyms of squawk box include intercom speaker.

squawk box (noun)	squawker (noun)
the loudspeaker on an intercom or public address system	the loudspeaker on an intercom or public address system
	a person given to excessive complaints and crying and whining