The purpose of siren
Different Police Siren Sounds
Nowadays sirens are an necessary tool in police work, useful for law enforcement.
How sirens works for function?
One reason is due to usage of sirens.Sirens and lights signal to be warning to criminals.
When police use sirens
Police sirens combined three main sounds, different situations tend to use different voices.
For example, when the situation urgent and law enforcement officers need to arrive quickly, Shouting/siren sounds will be appear;Relative sounds of sirens also be appear if drivers or passerby should give away.
In addition, police use emergency vehicle lights as well.
In a word, sirens can uese in many situations and fields, including fire, rescue ,sirens can be changed under related environment from emergency vehicles.