That's called passive noise cancellation. However, if you really want to turn the volume of the world down to the limit, then you need headphones with active noise cancellation. Active noise ...
And now it's finally done what a lot of high-end audio companies have had to do in this age of on-the-go wireless music listening: make active noise-canceling Bluetooth headphones. These $699 ...
how much noise they block with their active noise canceling. My top pick are the Bose QuietComfort Ultra headphones. They don't just sound epic, but their noise canceling is the best I've ever seen.