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 tri-tone sound which can be heard in all directions and further away than other whistles. FEATURES Plastic body Breakaway neck lanyard Attachment clip-on design 122dB loudness - Tri-tone Element Proof Floats on Water 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. Technical details Weight: 15g Dimensions (packed): 13 x 63 x 23mm