Emergency wistle

This tiny pocket whistle packs an incredible punch — measuring over 122 dB, it's one of the loudest 3D printed whistles available. And it weighs only 3 grams.

Whether you need it for hiking, camping, emergencies, sports coaching or just as a keychain tool — this whistle will be heard. The dual-chamber design maximizes airflow and sound pressure, producing a sharp, piercing tone that carries over long distances.

Print flat on the bed in PLA at 4 walls and 20% infill. No supports needed, ready straight off the printer.

Attach it to your keychain, backpack or jacket and never be without it.

⚠ Warning: 122 dB can cause ear damage with prolonged exposure. Use responsibly.