I wanted something to use on the plane to reduce the engine noise and this really fit the bill. The lower base frequencies of loud noises are zapped very well with these headphones, helping when no audio is being played, and helping to reduce the audio volume of what I am playing.Positives:They workLong headphone cableVery good battery lifeFeel good on the earEar pieces rotate for slimmer profile when not in useHard caseThe negatives are:Not for audiophiles. You will want other headphones off the plane.I can't hang this around my neck when not in use