The Lifesystems Echo Whistle has a compact and ergonomic design which creates a high pitch single tone that will be heard over long distances. The whistle is an essential piece of signalling kit which is perfect in sub-zero conditions. It is also extremely lightweight. A whistle can be used to alert people if you are in distress. The internationally recognised distress signal is 6 blasts of the whistle with a 1 minute break and then repeated. The reply is 3 blasts with the same pause.
Features:

108dB loudness
High pitch single tone
Floats on water
Key ring and attachment clip
Weight: 12g
Dimensions: 13 x 63 x 12mm