While the world is full of its own natural sounds to enjoy, it is also full of other sounds that are simply not as enjoyable. Certain travel situations, such as commuter trains and long airline flights, are just too noisy for some people to find peace. These are just some of the situations that have consumers wondering where they can turn for help to get the quiet they need to study, work, sleep, or just peacefully reflect on the day. People who consider using noise cancelling headphones may wonder if they will really mute the outside world so they can focus on what is important. Pros of Using Noise-Cancelling Headphones There is a lot going on in today's world. There are some limitation to what they block out, and some other issues of comfort to consider, but, generally speaking, noise-cancelling headphones do what they say they will do.