Megaphones are useful tools for transmitting information faster to a large group or over a large area, especially if the environment is loud. There are many different options and not all megaphones ...
NORTHBROOK, Ill.--(BUSINESS WIRE)--For powerful sound coverage that stands up to water, dust, heat, and cold, AmpliVox Sound Systems introduces the new Made in the USA Pro Marine Megaphone, model ...
Belle Isle Park in Detroit is home to a new giant "nature megaphone." High school kids lined up to cut the red ribbon to officially open the 10-foot wooden megaphone. They built it which is pretty ...
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