How are sirens made?

Sirens are typically made using a combination of a sound-producing mechanism, such as a rotating or oscillating motor, and an amplifier to enhance the sound. The core components often include a diaphragm that vibrates to create sound waves, housed within a durable casing to protect the internal mechanisms. Materials like metal or high-impact plastic are commonly used for durability. The design and tuning of the siren determine its pitch and volume, making it effective for alerting or warning purposes.