Not very happy with my Sony noise cancelling earbuds (MDR-NC22). Firstly, when I turn it on, it has to be in the OFF section, and to turn off, I have to push it to the ON section. You can hardly see the tiny little light indicating if it's on or not. After leaving the earbuds in my ears for a period of time (an hour) it'll start to hurt my ears. And, the rubber part doesn't really keep the outside noise out very well.I have an older Sony model (MDR-NC11) and the noise cancelling on them is much more effective than my newer model. However, the volume does not work well on my iPod.