Whistle |140dB Normal&Ultrasonic Whistle

🔊 This 3D-printable two-tone whistle. It features:

• A standard 140+ dB whistle for general use.
• A 20kHz ultrasonic whistle, ideal for dog training but inaudible to humans.

💡 How to Use:

✔ Everyday Carry: Attach to your belt for quick access.
✔ Outdoor & Hiking: Signal for others
✔ Dog Training & hunting: Use the ultrasonic whistle for commands.
✔ Sports & Refereeing: A reliable whistle for games or coaching.
✔ Personal Safety: Loud enough to deter threats in unsafe situations.
 

⚠ Warning:

• Extremely loud (140+ dB). Do not blow near ears.
• The ultrasonic whistle (20kHz) is just as powerful but silent to humans. If you don’t have a dog, just use the standard whistle.

🔧 Printing & Usage Tips:

• Material Choice:
  • PLA for basic use, PETG/ABS for durability.
  • Optional: use dual color for the icons on the whistle
• Usage:
  • Blow into the whistle to activate the different tones.
  • Keep away from ears due to high volume levels

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