Instruct: Classify a review as either positive or negative.
Query: Great sound

These headphones have a great quality of sound. The mix is just great. The only thing I will say about them is that they are totally noise cancelling. If you need to pay attention while listening, then you won't be able to hear a thing if you are using these headphones. I was listening to a full episode of LOST on the internet and missed like 3 phones calls because I couldn't even hear the phone. Unlike other headphones that you can hear relativley good what is going on around you, with these SHURE ones, you cannot. That is the only thing sorta negative about it. Other than that, they have SUPER great quality of sound.