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.
Dimensions (packed): 21 x 72 x 19mm