Excerpt: These headphones were recommended by my girfriend who wears a hearing aid and therefore can't use earbuds. I personally dislike earbuds and wanted something over the head that wasn't too bulky. The sound is absolutely amazing. It also has a boost feature along with noise cancelling. It really blocks out other sounds especially when you are travelling on the train/subway.
Summary: Played on portable music players flat (no EQ) and after break-in, the sound is clean and clear, mid-centric, and somewhat shy on both the high and low ends. In that sense I would rate it as a good value for its price. However, not all headphones of this type improve with a simple portable music player EQ, and using the 'rock' EQ setting on i-devices (or the equivalent on other players) to lower the midrange to the level of the bass and highs, the sound is much improved...
Summary: As someone who listens to music while commuting every single day, these headphones are great when you all you want to hear is YOUR MUSIC rather than outside noises. The bass is not too heavy, the treble is clean; these headphones simply sound great. Unfortunately I'm not a fan of the design, but that's really a minor issue anyone can get over.
Summary: i use these on my 1/2 hr long walk to and from work every day in the city. they're comfy and great sounding. but i can still hear traffic, which is nice (and safe!). i also use them at home, to talk on the phone (i use them w my iphone) while cooking/cleaning. the mic seems to pick up me, but not my activity. iphone note: originally i had an iphone 3, and the inline volume controls didn't work with it. the call switch/music pause and fast forward button did, though.
Pros: Comfortable, Easy To Use, Good Sound, Good Volume Control, Great mic position, Lightweight, Small inline controls, Style-y
Summary: The sound of the Sennheiser PX-200-II is quite different from the sound of the PX-100-II, and where I would normally expect a closed earcup (PX-200-II) to produce better bass than an open earcup (PX-100-II), the opposite is true with these two headphones. Bass with the PX-200-II is down about 5 to 6 db overall compared to the PX-100-II, but is up about 3 to 4 db compared to the Beyer DT-48E version 2010, which is known for very light bass response.
Summary: It really took me a while to decide on these headphones. Going into my search I knew I wanted comfortable, portable, and high quality headphones that also offered some sound isolation. Luckily, my research paid off and I ended up with these great Sennheiser headphones. Before I was using some cheap Phillips earphones so this is a pretty big step up in sound quality and comfort for me.
Pros: The headphones fold up, are very comfortable, offer adequate isolation, and excellent sound quality
Cons: The volume control is nice but it feels slightly cheep
Summary: Used on two business trips with no problem. On third trip the hinge for the folding mechanism detached. Tried to fix, but not possible. I will be trying to return under warranty. I expect better from Sennheiser!