Today my Blackbox M14 noise cancellation headphones arrived. I got these in preparation for possible travel with the Red Cross ERU. Noise cancellation headphones have been around for a while and are certainly a a must have for long distance travellers.
I looked at the Bose QuietComfort products which are pretty expensive, and comparing features and price the Blockbox M14 looked pretty good. They have had a number of good reviews and while not directly reviewed by Consumer at the time they compared other products they did get a good mention after the comparison.
They would probably work well for radio work on Jetboat racing events, but not sure that I want to take them out on the river just yet (they are brand new). I will write about my experiences with them in due course after I have tried them 'in anger'