The JetScream Floating Whistle is a powerful signalling device that can be easily heard above most natural and man-made noises. Features One of the loudest whistles of its kind - 122db Can be heard above most natural and man-made noises Pea-less design wont freeze or clog Wont rust like traditional whistles Compact flat and just over 2 in length Just as effective when wetSpecifications Color: Yellow Country of Origin: USA - SKU: PROCT73711.