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An electric megaphone is a handheld public address system, an electronic device that amplifies the human voice like an acoustic megaphone, using electric power. It consists of a microphone to convert soundwaves into an electrical audio signal , an amplifier powered by a battery to increase the power of the audio signal, and a loudspeaker to ...
A late 19th-century speaking trumpet used by firefighters A small sports megaphone for cheering at sporting events, next to a 3 in (8 cm) cigarette lighter for scale. From the Ancient Greek era to the nineteenth century, before the invention of electric loudspeakers and amplifiers, megaphone cones were used by people speaking to a large audience, to make their voice project more to a large ...
It has since become one of the leading sources of user-generated reviews and ratings for businesses. Yelp grew in usage and raised several rounds of funding in the following years. By 2010, it had $30 million in revenue, and the website had published about 4.5 million crowd-sourced reviews. From 2009 to 2012, Yelp expanded throughout Europe and ...
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A Washington state man who used a megaphone to orchestrate a mob’s attack on police officers guarding the U.S. Capitol was sentenced on Wednesday to more than seven years in prison. U.S ...
Exterior of vacated Good Guys store of in Emeryville, California, pictured in 2006. The Good Guys, Inc., was an American chain of consumer electronics retail stores with 71 stores in California, Nevada, Oregon, and Washington.
In May 2006, MJW announced that, despite having paid $40 million for the building and investing another $10 million in the project, it would put the building up for sale. [14] Boyle Heights native and boxer Oscar De La Hoya, who said he used to shop as a child at the Boyle Heights Sears store with his mother, tried to revive the redevelopment ...
The Mendocino County (California) Board of Supervisors approved the purchase of a Long Range Acoustic Device for the Mendocino County Sheriff's Office on April 18, 2017. Sheriff Tom Allman said the device would aid in searches for missing persons, most often hunters and mushroom pickers, which cost the county tens of thousands of dollars.
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