This sound alternator is designed to simulate the effects of a police siren, combining sound and light to create a dynamic ...

A new kind of police siren that emits low-frequency vibrations, is making waves -- quite literally -- in the town of Bartow, Fla. Although pedestrians may find it unpleasant, officers think it's a ...

Northwest Columbus residents got an early wake up call Saturday morning as an odd siren sound can be heard throughout the ...