According to vendor Viking Horns, the quick rundown on their hand crank siren is as follows. Color: Dark Gray. Sound Output: 115 decibels. Construction: Metal housing. Operation: Manual hand lever. Ideal Use: Getting people's attention. Getting people's attentions. Yeah, I'll say. That's why the kid in the video has one. It's the signal he blares when he wants to
warn the world of impending doom tell his mama to make him some more pie.
This hand crank siren, similar to those that served as high-pitched gas alarms during WWI, measures 5" x 5" x 5". Note that the WWII-era "air raid" sirens are typically much larger and 3 to 4 times more expensive. Like this bad boy.