I have used the DC, Bose, and many others. My favorite continues to be the Clarity Aloft headset. It does not have noise cancelling because it doesn't have the hollow chamber the others have where noise needs to be cancelled. It never lets the noise in. It weighs much less than the Bose, you can wear it for hours on end with no sweat or red marks around your ears. It doesn't clamp your head. Sunglasses don't affect the sound. You can slip a ball cap on and off (when the sun gets in your face) without taking it off, and the microphone sounds great. You can buy it for $525 and IMHO it out-performs all the other headsets. I started using mine while instructing in Phoenix for 8 hours a day with up to 120 degrees on the ramp. No sweaty ears, no aching head. downside - You have to be OK with the seals sticking in your ear. Some people can't stand that. Sunglasses do fight with it some times but if you put them outside the headset arms it works fine. I have used them in single pistons, multi pistons turboprops and jets. again IMHO, they can't be beat.