Echo  3 tone whistle
Free     Thingiverse     LetsMakeThings

Echo / 3 tone whistle

For the loudest results print the whistle on its side The Echo whistle started as an idea to create the loudest whistle for a 3D Printer and create a more compact survival whistle This whistle is designed for the person who wants a easy compact ...

similar models —

Echo / 3 tone whistle alternatives
Duo Tone Whistle
jipvanleeuwenstein
whistle
johny haky
Whistle
Val