The ACME Samba Whistle is a specialized whistle that is used in musical settings, particularly for Brazilian samba music. 

1. Material and Design:

   • Typically made from durable plastic or metal, designed to withstand frequent use.
   • Often features bright, vibrant colors, making it visually appealing and easy to spot.

2. Sound and Functionality:

   • The ACME Samba Whistle can produce multiple tones, which can be varied by how you blow into it and by using your fingers to cover and uncover the side holes.
   • Known for its loud and clear sound, it is designed to be heard over the noise of a samba band or parade, making it perfect for leading rhythms and cues in musical settings.

3. Usage in Samba Music:

   • Used by samba leaders to signal rhythm changes and coordinate different sections of the band.
   • Integral to samba performances, adding to the festive and energetic atmosphere.

4. Durability and Usability:

   • Built to endure the high-energy environment of samba parades and performances.
   • Lightweight and easy to carry, often worn around the neck for quick access.