Pros: Sound quality, price, single wire, comfortable, portability.
These are one of the best open design headphones in this price range. They are very clear and don't leak as much as I thought they would. They are pretty inexpensive and I love the single sided wire. They are very comfortable so you can have them on for hours. The best thing about this model is you can fold them and stuff them in your bag or pockets. These are one of my best purchases, but of course there are always better ones so I upgraded!
I highly recommend these for listening on the go. On buses, you may want to have the volume controlled or the person next to you will hear it. These leak a little less than other open design headphones.