Being prepared is always key when in nature. The safety whistle is an essential item for people in the outdoors - six short blasts followed by a minutes\' pause is the standard UK signal for \'help\' (although some people do use three short blasts instead). If you hear someone else signalling, you should respond with three short blasts and continue signalling until you find each other. This whistle is made from lightweight, durable plastic, and it packs a punch at 108db - perfect for emergency signalling. It\'s also buoyant and comes with a lanyard making it hard to lose and quick to use. The whistle is an essential piece of kit for the outdoors.