I especially like the light weight and the compact design that nicely goes to every bag and the small carrying bag which you get in the package

None of these are excuses because the phones themselves have a very neutral, non fatiguing sound delivered via a very comfortable design that makes a 2,3 or 4 hour listening session during travel very easy.

The overall design is impressive and they do not stand out like many over the ear headphones

I love my Grados but if I could find a single complaint it would be the awkward Y cable design, which can be annoying beyond

great audio better than my old PX 200, and nice new design of the wire it just goes on the left ear.

I wish Sennheiser corrected the design and stop following some foolish trends (BTW I may know one or two things about electrical design since I have electronics education and degree... just for the record).

Comfortable, lightweight, folding design makes they quite portable

Figured these things would last as long as the other 30 or so IEMs I've purchased that all lost a channel due to cheap cable design -- especially at the point of contact with the TRS pin or earphone

The sound quality is a really good balance of quality, deep bass, excellent mids and highs - I love it