loud hailer
Noun
Meaning
a portable loudspeaker with built-in microphone and amplifier
Source: WordNetAlternative names
loud-hailer
Synonyms
bullhorn
mike
horn
speaker
trumpet
microphone
mouthpiece
loudspeaker
mic
megaphone
public address system
loud hailer
speaking trumpet
speaker system
speaker unit
Hypernyms
Examples
So go into your local branch of UBS, and say "I'd like to open an account please.", and when they say "What with?" take out a loud hailer and say "NAZI GOLD! Just like you did!