Good day, I have been using the headphones for just under two days now and have read countless reviews of this and similar devices. I saw the construction site in front of my house as a reason to buy ANC headphones for the first time. I have to say, though, it's not the revolution I was hoping for, and I'm now wondering if it's my expectations or something else. Here's my question: There is a very slight noise in the background and most importantly, the ANC does not provide silence for me, rather background noise is just quieter and sounds brighter (ANC is undoubtedly on, and at the highest level). Is this normal? How much worse is the ANC of these headphones compared to more expensive ones, can more or less silence be achieved by this technology at all? Regards