These Panasonic noise canceling headphones are perfect for watching Netflix and Amazon movies on our Roku box while one of us sleeps. There is no "noise bleed" in even the loudest movies (Terminator 2 comes to mind). My wife can watch the movie while I sleep undisturbed. Let it be said, they are NOT the superb Bose noise cancelling headphones (which generally sell for nearly $300). But, especially for the price, they do the job and provide the listener with excellent sound. The foam ear caps are also comfortable for longer term use (several hours) without too much "ear/head burn." But, eventually (perhpas 4 hours), they create minor pain on the sides of your head from too much pressure. All in all, a great set of inexpensive noise canceling headphones well worth the minimal investment.
The sound is good and fairly noise cancelling. You cannot use them as an equalizer but they are still very nice. They do not have any discomfort on the ears or the top of the head. There is padding at the top and a lot of cushioning around the ears. They still work even if the battery (which one is provided with the product) runs out, just they won't be noise cancelling. These give better sound than ear buds and are much more comfortable.