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2. Megaphone - Wikipedia

   en.wikipedia.org/wiki/Megaphone

   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 ...

3. Long-range acoustic device - Wikipedia

   en.wikipedia.org/wiki/Long-range_acoustic_device

   An NYPD LRAD on top of a police humvee An LRAD operator wearing hearing protection LRAD on a navy ship. A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance.

4. Megaphone (disambiguation) - Wikipedia

   en.wikipedia.org/wiki/Megaphone_(disambiguation)

   A megaphone is a portable funnel-shaped device used to amplify a person's voice or other sounds. Megaphone could also mean: Megaphone (podcasting), a podcasting technology company, formerly Panoply Media; Megaphone (band), rock band from Orlando, Florida; Megaphone desktop tool, the pro-Israel lobbying software tool

5. Musk flexes influence over Congress in shutdown drama - AOL

   www.aol.com/shutdown-drama-could-taste-things...

   Musk and Trump quickly derailed a stopgap spending bill, showing their power before the president-elect even takes office.

6. Horn loudspeaker - Wikipedia

   en.wikipedia.org/wiki/Horn_loudspeaker

   A horn loudspeaker is a loudspeaker or loudspeaker element which uses an acoustic horn to increase the overall efficiency of the driving element(s). A common form (right) consists of a compression driver which produces sound waves with a small metal diaphragm vibrated by an electromagnet, attached to a horn, a flaring duct to conduct the sound waves to the open air.

7. Talk:Megaphone - Wikipedia

   en.wikipedia.org/wiki/Talk:Megaphone

   The article states that the TOA EM-202 was the world's first transistorised microphone, but the current history pages on the TOA website (possibly changed since the article was written as the reference link no longer works properly) suggest that, while it was the first electric megaphone produced, the company did not produce a transistorised ...