O - Whistle

by The Big Greek

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whistle whistle alarm whistle keychain tiny small wallet easy pocket compact emergency survival easy print print loud extreme sport referee the big greek tbg

O-WhistleUPDATE: here you can find the same whistle with a loop - it was a comunity request https://makerworld.com/en/models/784991#profileId-722629 klick here I would like to introduce you to my new O-Whistle.I have tried to construct a whistle that produces 2 different sounds, and here it is, the O-Whistle.If you blow in moderately, the sound reminds me of a train whistle. if you blow in with force, the whistle is so loud and shrill that it is extreme. without covering your ears, it is very pa