One of the loudest whistles available, the Hurricane performs in all weather conditions even when it gets extremely wet. When blown the chamber design ejects water and creates a unique tritone sound which can be heard in all directions and further away than other whistles. Plastic body Breakaway neck lanyard Attachment clipon design 122dB loudness Tritone Element Proof Floats on Water DofE Recommended Kit This product is specifically recommended by the DofE charity as the best choice for those taking part in their bronze, silver, or gold awards International Distress Signal 6 blasts of a whistle followed by a pause of 1 minute and then a repetition of 6 blasts. If your signals are heard, there should be an answering whistle 3 blasts followed by a pause of 1 minute, repeated several times. Continue to signal until you have been located. Unless you require assistance, do not do anything that could be mistaken for a distress signal.