Marine whistles are used for communicating in loud chaotic environments; ie: above and below waterfalls. This marine whistle features 100 decibel blasts, webbing clip, lanyard hole, and floats. Includes a length of cord for you to tie on, keep it fixed to your helmet.

Dimensions: 3” x 1” x 0.5”
Color: Orange

Basic American canyoneering whistle communication:

• One blast = “STOP”

• Two blasts = “Off-rope”

• Three blasts = “Give-me-rope”

• Four blasts = “Take-up-some-rope”