loud-hailer

noun

1. a portable loudspeaker having a built-in amplifier and microphone Also called (US and Canadian)bullhorn

Example Sentences

A video shared on social media, whose authenticity could not be immediately verified, showed a woman warning people via a loud-hailer not to do so, saying such gestures were being encouraged by “outsiders.”

From Reuters

After warnings by the U.S. vessels through radio and loud-hailer devices went ignored by the Iranian patrol boats, the USS Firebolt warning shots – prompting the vessels to retreat.

From Fox News

After each heartbreaking petition, Cisneros grabbed her loud-hailer and marched on through the community, imploring locals to vote for change.

From The Guardian

Certainly, you wouldn’t say his work is exactly throbbing with Christmas cheer: “Will the three wise men please step forward!” shouts one of his solitary naked everyman figures through a loud-hailer into a black void.

From The Guardian

As St Mitten manager, Ferguson used a van with a loud-hailer to tour the working class areas of Paisley, exhorting people to come to matches.

From The Guardian