Double Tube High Audio Whistle Crafted from Titanium Alloy for Outdoor Rescue

Dual Tube Blast Design: The product utilizes a dual tube blast design to provide more powerful penetration.
High-frequency penetration: the sound can reach 120dB with high-frequency penetration capability, realizing comprehensive frequency coverage.
Material: Made of titanium alloy, the product is waterproof and corrosion-resistant while maintaining its beauty and texture.
One-piece molding: The product is designed as a one-piece molding with a solid structure.
Ball-less design: The ball-less design is adopted to avoid the problems the ball may cause.
Blowable Dust in Water: Even if the product gets into water, dust can be easily cleaned.