I love these wireless buds as general use earphones. For the life of me though, I have not been able to detect any difference at all with the noise cancelling turned on. The sound of my environment is absolutely the same. I do hear a difference with enhanced sound when the Ambient Sound feature is on, but nothing with ANC. I have tried all 3 size bud caps to no avail. Am I missing something? I had BOSE over the ear headphones and while I realize there is no comparison, there was a distinct change in the audible environment when ANC was turned on. These are really expensive bluetooth earbuds without this feature at least giving me some measure of noise cancellation. Has anyone had a similar experience and what have you done to resolve?