Vargo Titanium Emergency Whistle built with the strength and toughness of titanium. Titanium pealess design wont break or fail where other whistles will. And because it weighs just 1/10th of an ounce its a great addition to any pack or emergency kit. Features: 100+ decibel level whistle Titanium pealess design wont break or fail where other whistles will Extremely lightweight to provide maximum peace of mind as minimally as possible Includes a handy neck lanyard with reflective weave Specifications: Whistle weight: 0.1 ounces (2.8 grams) Whistle length: 2.2 inches (56 mm) Whistle diameter: 0.3 inches (8 mm) Cord length: 30 inches (762 mm)