eGear Marine WhistleThe eGear Marine Whistle is an Essential Signaling Device for All-Survival-Situations. The eGear Marine Whistle emits a Shrill, High-Pitched Sound that can be heard from great distances over ambient noise. Whistle is Waterproof-and-Durable, with a Pea-Less Design for All-Weather Use. The Whistle has a Clip that attaches to Clothing or Equipment for Quick-Access along with a Break-Away Lanyard. Small, Compact and Lightweight the whistle measures only 2 75" x 0 75" x 0 75" (70 x 19 x 19 mm) and weighs 0.26 oz. (7 4 g). The Whistle should be carried everywhere. The eGear Marine Whistle is a great accessory for all the camping fans out there.