DIY Air Raid Siren Test!! How a siren works, and how we got here!

In this video, I test out a 3D printed air-raid siren. If you would like to know where I got it, my uncle 3D printed it for me. Thank you VERY much!! Also, here's the website where I got the STL files:
The guy's video -
• Homemade Air Raid Sire...
The/His website -
www.nicolassal...
Chapters
0:00 - How a siren works
2:36 - Testing the siren
3:19 - Acknowledgements