These headphones are comfortable to wear and have great sound quality. I'd been using some in ear headphones before which I found felt a little odd - like having ear plugs in. These ones with their special "ultimate fit eargels" are much more pleasant for me. I guess people will have different opinions on this depending on their preference, but I really like them. They fit really well in my ears and stay put fine. The built in microphone picks up sound well and I was able to use voice commands and record voice memos on my iPhone using it. Judging by the playback of my voice memos, the sound quality from the microphone would be fine for a phone call. I also liked the way they are packaged in a cool tube :-) Only one negative is that they probably wouldn't suit you if you want to totally block out the world while using them - they don't do that so well, but for me I like it - I can enjoy my music, but still hear if one of my children needs me!