I haven't tried these sites yet, I'll take a look. Do you use noise-cancelling headphones? The best feature I've found with my QC35 is not so much the noise cancelling but the combination of noise cancelling and audio. Obviously with noise cancelling on, I can hear most of what's going on around me, just a bit dulled. But add in a VERY small amount of quiet music and the rest of the world disappears in a way it doesn't with just NC.. or that requires MUCH louder music without NC.