There is no noise cancellation at all, you can hear everything going on around you. I had a higher end pair that was stolen and I didnt feel like spending $300 again to watch them walk away. Go into Sound and screen, then audio output settings and change sound to prioritize optical out. Update: January 5, 2021The right side of the headphone now has no sound. I can’t find any difference with original Ugg’s. Sending back and wont be getting a new size from this supplier. Beim Fahrradfahren kommen die oft an die Tretkurbel und lösen sich immer wieder. She takes a test and lets you know how she did and thats it. Dandruff shampoo dries me out even more, conditioner makes it worse also and Ive even tried "T-gel" from Neutrogena which is supposed to help but it in fact burned my scalp. Overall this is a great product and I recommend.