Summary: The sound is good, but the eadpad become bit unconfortable after a couple of hours. They `re good option for going running or jogging, but definitely not for the fitness as they slide down your head when you'are working out.
Summary: I bought these headphones for use in the gym, they easily paired with my iphone. Really good punchy sound, and they stayed on the ears no problem. Unfortunately after about 13 months they stopped holding their charge, and then the left side stopped working altogether. This was beyond the warranty, so after investigating the cost of their repair, I decided it wasn't worth it.
Summary: I bought these to use at the gym with my iPhone 4S and when using my iPad to watch movies. Pairing with these devices was easy and the convenient track and volume adjustments are a nice touch. The headphones feel well made and but for me personally, they are not very comfortable. My wife tells me that I have an enormous head which in reality might be slightly larger than average but by no means a pumpkin!