Bought these for air travel and for use while on a river boat for two weeks in Brazil. They work great! I even used them last week when I got home while mowing the lawn, and I had a difficult time being able to tell if the mower was still running at a couple points. Impressive!The sound quality is wonderful. I watched movies on the plane and boat and could hear things I sometimes missed on my home theater.The design is nice too as some noise reduction headphones have the battery pack on the wire, and its heavy and weighs you down on one side. This has the AAA battery in the headphones themselves and its like it isn't even there! Big thumbs up!