Tried the Bose at an in store demo and they basically 'make the world vanish' when you flip on the noise cancellation. These aren't quite that good, they just push the outside world back a good bit. The Bose are just too darned expensive and these aren't so unless price is no object these are a far greater value for normal working folk. I work near a server rack full of fans and playing music near them is basically a crank it up contest to get over the whirring fans. These make it possible to play music at a safe volume level and still understand it. That is a win. Do be careful with these, or probably any other NC headphones, while they only quieten the fan whir sound, I totally failed to hear the alarm beep one of the servers gave off while wearing these phones. Some sounds get canceled more than others, perhaps some you might need to hear.