Fox 40 Sonik Blast CMG Safety Whistle with Breakaway Lanyard

Advanced science and technology makes the Sonik Blast CMG the most efficient pealess whistle in its class! Precise whistle chamber calibration assures pure frequency performance; lest effort, crisper sound. 4 sound-producing resonators built into 2 chambers. Flawless patented pealess whistle emits sound power that exceeds 120 dB. Extremely easy to blow; cannot be overblown. Superior clear loud blast can be heard over long distances and ambient noises. A must for emergency protection, onsite disaster management, search and rescure. Recommended for anywhere without a ceiling! Works wet or dry!