ACME siren horn AC451 [Domestic regular product]

When you blow, the fan inside spins and makes a siren-like sound. When you blow into it firmly, it makes a loud sound, so it can be used as a signal to start a match or as a warning sound during outdoor activities. It is also used in wind bands and orchestras. You can also enjoy it as a sound effect by changing the pitch depending on the strength and speed of your breath. It is also ideal for use as a child's toy, play party, school play, or as an instrument for emotional education. *You can check the tone in the video. ACME is a long-established British whistle manufacturer founded in 1870. The crew of the luxury liner Titanic also famously used ACME whistles.