Khanjan Pure Brass Made Super Strong Survival Whistle Precision-designed single tube design with wide sound chamber produces alerts above 125dB to cut out confusion and reach rescuers over a mile It is designed to cast effortlessly in strong hurricane winds. IMPORTANT FOR EMERGENCY AFTER DISCERS: Signals pass through fragments, submersion zones and unclear terrain when your vision is collapsed PEACE LESS CONSTRUCTION: Solid body design eliminates moving parts that work in mud, ice and heavy rain. Reinforced air flow ensures clarity in ear cracking in storms, blizzards and freezing cold. The brass whistle can withstand wet muddy hands and is non-slip, freeze free. Resists submersion, silt, and crushed impacts Unbreakable Forged from premium brass with military grade corrosion resistance and built to withstand torso debris, floods, and crush pressure. Rust resistant, submersible and sand proof when survived on one tool. Can be heard in heavy rain, howling wind, or even broken structures SAVE LIVES AFTER DISTABILITY: When the cell tower breaks and the road goes off, this whistle is your voice. Penetrating sound penetrates the debris and directs the rescue forces and alerts the helicopter from the roof. Keep your gear accessible: You can loop your gear through the loop, clip it to your belt, or store it in your pocket. **Ready to scream for help in important times every second Uncompromised Support Lifetime Warranty + 24/7 crisis customer care. If a disaster occurs, we will replace the whistle for free