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Sirens is the plural of siren
Modern electronic sirens change amplitude and pitch. Older sirens produced tones that changed in amplitude (volume) but were changed in pitch by their motion relative to the listener: increasing in frequency as they approached and decreasing in frequency when they moved away. This is called the Doppler Effect.
Fire department siren.
depends on the siren... but about 4-10kW is average
siren i think it is siren
A siren is a output device
Pick Naga Siren and play
Siren City was created in 1983.
Siren City happened in 1983.
American Siren was created in 2010.
Team Siren was created in 2004.
Kaija Siren was born in 1920.