Simple Zip Whistle

The Zipper Whistle The Zipper Whistle is a 2.4-gram powerhouse remixed for maximum output and instant access. I’ve integrated high-performance acoustic DNA into a rugged zipper-pull profile that screams at 120dB+. It’s designed to live on your jacket or pack; invisible until you need to be heard. This model is an adaptation of Timcel's design, which you can find here. Design Highlights 📍 120dB+ Output: Re-engineered internal geometry produces a piercing, high-frequency blast that cuts through wind and ambient noise. Zipper Pull Integrated: Replaces standard pulls for seamless, no-fumble access on jackets, backpacks, or lanyards. Optimized Profile (2.4g): Engineered for "gram-shaving" EDC kits. You’ll forget it’s there until it’s time to signal. Fast print: Less than 17m. 3D Optimized Internal Geometry: No Supports: Designed for clean internal airflow right off the plate. Print-to-Play: Precision-angled chambers ensure a crisp, consistent tone without post-processing. VISIT MY PROFILE