Dual-tone Bird Whistle – fill, blow, 2 calls
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![Small single-color [without hanging hole]](https://makerworld.bblmw.com/makerworld/model/US4395de853c446c/863106322/instance/fca02273c3984773.png?x-oss-process=image%2Fresize%2Cw_100%2Fformat%2Cwebp)
Description
A dual-tone bird whistle; add water and blow, and two birds will sing in unison.
Dry blow: Blow without water, and it's a loud whistle.
Add some water and blow again—
two different bird calls sound simultaneously, clear and interwoven, as if two real birds are singing a duet in your ear.
What's more,
different water levels will change the bird's song.
Try blowing with different amounts of water; the calls will vary, offering a new surprise each time.
⚠️ Tip: Experiment with different water levels a few times to find the "recipe" that sounds most like a real bird.
- Principle: dual-chamber structure, water creates different frequency trills inside the chambers
- Keychain design: hang it on a backpack or with keys, carry it with you to blow anytime
- Print in Place, no supports
Multiple sizes available: Large, medium, and small are available, both with and without hanging holes.
Dimensions:
- Large: 85.5*44*61
- Medium: 72*37*51
- Small: 57*29.5*41
Comparison chart below:

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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.




















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