Black and white line of a megaphone announcement device loudspeaker communication
Schlüsselwörter
megaphone,
announcement,
device,
loudspeaker,
communication,
black-and-white,
speaker,
public address,
broadcasting,
sound,
vintage,
monochrome,
simple,
minimalist,
symbol,
tool,
equipment,
audio,
concept,
silhouette,
outline,
black,
white
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