Strengths: These headphones give great sound and most of all stay in your ears while running.
Summary: I have been running for about 2 years now. I have tried several types of head phones and by far these are the best. They stay in your ears even when sweaty. The band around the back of your neck is so much more comfortable that over your head and another big advantage is there's only one cord. Most others have 2 cords and they bug me when I run.