The file 'Passive Phone-Horn [iPhorn] 3D Printer Model' is (stl) file type, size is 3.9MB.
Passive Phone-Horn...suitable for an iPhone 11 Pro with case or others. Can be scaled.
The sound quality is - as expected - mediocre, but at least it gets noticeably a bit louder ;-)
passive_iphone_horn_ver1.stl | 4.5MB | |
passive_iphone_horn_ver2.stl | 5.5MB |