this alarm whistle is designed to generate an intense sound.you can use it into a pendant or keychain.
optimized for a 0.4mm filament.PARAMÈTRES D'IMPRESSION 3Dsupport freeprinted in 23 minutes with a Prusa i3.sound demonstration herehttps://www.youtube.com/watch?v=rxTrr7LR6y4&feature=youtu.be
morehttps://www.3d-fabric-jean-pierre.com