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The laws regulating driving (or "distracted driving") may be subject to primary enforcement or secondary enforcement by state, county or local authorities. [1]All state-level cell phone use laws in the United States are of the "primary enforcement" type — meaning an officer may cite a driver for using a hand-held cell phone without any other traffic offense having taken place — except in ...
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.
Driver was a commercial hit, with sales above 1 million units by early August 1999. [49] In the German market, Driver ' s PlayStation version received a "Gold" award from the Verband der Unterhaltungssoftware Deutschland (VUD) by the end of July, [50] indicating sales of at least 100,000 units across Germany, Austria and Switzerland. [51]
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 ...
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 ...
A patrol car is a police car used for standard patrol. Used to replace traditional foot patrols, [6] the patrol car's primary function is to provide transportation for regular police duties, such as responding to calls, enforcing laws, or simply establishing a more visible police presence while on patrol. Driving a patrol car allows officers to ...
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 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.