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Non-lethal weapon
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==== Long Range Acoustic Device ==== The [[Long Range Acoustic Device]] (LRAD) is an [[acoustic hailing device]] developed by [[LRAD Corporation]] to send messages and warning tones over longer distances or at higher volume than normal [[loudspeaker]]s. LRAD systems are used for long-range communications in a variety of applications<ref name="lradx.com">{{cite web|url=http://www.lradx.com/application/|title=Long Range Acoustic Device Industry Applications - Public Safety & Security Solution|access-date=2016-08-07|archive-date=2017-03-10|archive-url=https://web.archive.org/web/20170310075013/https://www.lradx.com/application/|url-status=dead}}</ref> including as a means of non-lethal, non-kinetic crowd control. Though they have been called "sonic weapons",<ref>{{cite web|last=Sheets|first=Tess|title=P.A. system or 'sonic weapon'? Cops' use of military-grade speakers at Orlando protests prompts backlash|url=https://www.orlandosentinel.com/news/breaking-news/os-ne-orlando-george-floyd-protests-lrad-opd-20200625-vke7xwiggbg23llwetr4eggsz4-story.html|access-date=2021-07-04|website=orlandosentinel.com|date=25 June 2020 }}</ref> LRADs are not inherently for military use. The round black devices on top of New York City police Hummers are LRADs.{{citation needed|date=April 2022}} According to the manufacturer's specifications, the systems weigh from {{convert|15|to|320|lb}} and can emit sound in a 30Β°- 60Β° beam at 2.5 kHz.<ref name="Corbett 2009 65">{{cite book |url=https://books.google.com/books?id=E0kUYUOtG0AC&pg=PA65 |page=65 |last=Corbett |first=Peter |title=A Modern Plague of Pirates |isbn=978-0-9562107-0-8|year=2009 |publisher=Captain Peter Corbett }}</ref> The manufacturer also produces systems for public address and mass notification use that broadcast 360Β°.<ref name="LRAD Corporation website">{{cite web|url=http://www.lradx.com/product_categories/lrad_mass_notification_systems/|title=LRAD Mass Notification & Life Safety Systems Archives - LRAD Corporation|access-date=2016-08-07|archive-date=2017-03-10|archive-url=https://web.archive.org/web/20170310073033/https://www.lradx.com/product_categories/lrad_mass_notification_systems/|url-status=dead}}</ref>
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