When I went to Nepal I had a pair of these and was completely amazed at the jet engine noise reduction they provided. The sound reproduction is probably a short come, not bad mind you but not excellent. what is excellent is their ability to block sound. I had others I was traveling with try them on and all were impressed with the sound reduction, for this alone they are worth buying. An added plus is their collapsable feature which really makes them travel worthy and they are comfortable to boot.