These things are pretty cool. I had an Astro a40 for a while, then an a50, I bought them and immediately noticed some differences in the sound. At first I didn't like it. About a week later I tried my Astros again and they sound terrible in comparison. These things are pretty amazing. The noise cancellation is amazing. I can't hear anything, so unfortunately I may have to return them and buy phones with open headphones (there are small children), but if you don't want to hear anything, buy them. I am very impressed with their quality.