[B][URL="http://www.hollywoodmegastore.com/cgi-bin/VirtualCatalog3/CatalogMgr.pl?cartID=b-4435&SearchFor=6065+6120&template=Htx/megaphones.htx&hdr=Hollywood+Mega+Store+Product+Listing%20:+Director's+Megaphones"]Megaphones[/URL][/B] have innumerable uses like it is being used by firefighters to attract the attention of the persons engulfed in life threatening situations. It is used by policemen to address a violent mob; also it is used in many sporting events.The sound quality has improved a lot with the use of diaphragm made up of polyimide.

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In the entertainment media it has been extensively used by directors to communicate with their actors and the team members. Cecil B. DeMille is known to be one of the first directors who had used the megaphone on the sets of his shoot, which was around the year 1913. Today directors around the globe use megaphones for easy communications and these devices are popularly known today as the “Director Megaphone”.These are the electric megaphones available today which make use of microphones and magnifies the effect of sound manifolds for the listener.

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