Dual-Tone Bird Whistle | Add Water, 2 Bird Calls

A dual-tone bird whistle; add water, blow, and two birds chirp in unison. Dry blow: Without water, it's a loud whistle Wet blow (with water): Two different bird calls sound simultaneously, crisply intertwined, like two small birds singing a duet next to your ear What's more, the bird calls change with different water levels. Try blowing with different amounts of water; the calls will vary, offering a new surprise each time. ✅ Print in Place, no supports needed, beginner-friendly ⚠️ Tip: Experiment with different water levels a few times to find the 'recipe' that sounds most like a real bird. Principle: Dual-chamber structure, where water inside the chambers produces different frequency trills   Two structures available: with hanging hole (for backpacks, keys) / without hanging hole (for pure play) Specifications: Available in Small and Large sizes. Dimensions: Small: 57*28*41 Large: 85*42*62 Comparison chart below:     Boost Me如果您喜欢，觉得对您有帮助，可以为我助力哈❤️！您的支持就是我创作的大大动力！🙏🙏🙏