I travel a lot and find the Noise cancelling quality acceptable consider that you be not cover you entire ear . I would agree with those reviewer that the ear plug can get uncomfortable . my biggest complaint be with the product quality . one set last 11 month and the replacement set last 93 day -lrb- 3 day past the warranty -rrb- . in both case one of the earplug quit work . Sony quote I $ 85 dollar to fix !!! look for a replacement ...