Dual-Tube 120dB Sound: Dual-tube chambers create a powerful, high-frequency whistle that cuts through surrounding noise for fast, effective emergency signaling. Easy-Blow Airflow Design: The 45° angled outlet reduces airflow resistance, producing a loud, clear whistle with minimal effort. Multi-Purpose Signal Whistle: Ideal for hiking, camping, survival, rescue signaling, sports, and bird training. One compact whistle for multiple outdoor needs. Lightweight Titanium Build: Crafted from corrosion-resistant titanium for a lightweight, durable design that stands up to demanding outdoor conditions. Integrated D-Ring: Easily attach the whistle to backpacks, belts, zippers, or other gear for secure and convenient access.