Just want to say thank you for the headset, I have know idea how the noise canceling work, but it works very well. Very happy with the headset.

As soon as I pressed the power button it was like getting into different aircraft. I could still hear the engine, but it sounded like an engine a quarter it’s size. I could also hear things I could never hear before, like the vent flap for the heat, little rattles along with just about everything else.

I fired up the engine. Placed the A20 on my head. Turned on the ANR. WOW! I mean REALLY WOW! Un-believable! The cancellation blew me away. In disbelief, I switched to the Bose X. I couldn’t believe my ears. In comparison, the Bose X, which I loved so much, sounded like a medium quality passive noise headset!! There was an astonishingly marked difference in noise reduction. I’d say there’s a 30-40% reduction in noise over the Bose X