QuietComfort headphones were designed specifically for air travel, but owners say they enjoy using them in other places to reduce distractions as well: on buses and trains, in the office, even at home. Wherever you take them, these headphones fold flat and store easily in their slim carrying case. To fade background distractions and enjoy peace and tranquility, simply turn the headphones on. To add Bose quality sounds, attach the included audio cord and connect the headphones to a portable MP3, CD or DVD player, laptop, in-flight audio system, or home stereo.