Airhorn - Vuvuzela

I present my version of the compact 3D printed vuvuzela — a simple project with a surprising result.
After assembly, use is quite straightforward: just blow through the central hole.

The sound produced is extremely loud for the size of the peace — seriously, impressive right from the first test
Its functionality primarily depends on the membrane used.

You can test different materials, such as:

Latex glove

Common balloon

Other similar flexible materials

Furthermore, the membrane tension directly influences the sound:

The more stretched, the higher pitched the sound will be

The looser, the lower pitched the result will be