The Fox 40 Sharx Safety Whistle is a reliable and trusted whistle for search, rescue, outdoors, and personal safety. It emits effortless authoritative sound of 120 dB that can be heard for miles over ambient noises. Made from durable polycarbonate and co-molded elastomer for added comfort and slip resistance. Specifically designed to perform in the nastiest weather conditions! Comes with Fox 40 black lanyard.