loud hailer

Definitions of loud hailer
  1. noun
    a portable loudspeaker with built-in microphone and amplifier
    synonyms: bullhorn, loud-hailer
    see moresee less
    type of:
    loudspeaker, loudspeaker system, speaker, speaker system, speaker unit
    electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
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