Cái Còi

This is an extremely simple, but very loud whistle. A whistle is an essential thing to keep with you, especially well hiking. For that reason, there is a keychain connector, so you can keep the whistle with you at all times.

Usage Instructions

This whistle works best with short and powerful or long, powerful and sustained breaths. Slow breaths, do not create the distinct, piercing whistle sound.

Printing Instructions

• Material: PLA or PETG (for extra strength)
• Supports: No
• Orientation: Print the file with the bottom on the build plate

If you enjoy this model, please leave a like and a comment. If you have any questions, concerns, or problems, please personally contact me.

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