these be simply a great pair of headphone ! all around the sound quality be nothing like I have ever hear on a pair of earphone . I have never buy more then a $ 20 pair of earphone but have some extra cash , love the design of these and decide to buy they . the cord do not tangle , it be amazing ! my cord always get tangle din my bag but no longer ! the design be great , i have see a few people do a double take to see what be in my ear . when you open they you might need to put in the correct size for you ear -lrb- it come with three size -rrb- so do not fret if they do not fit you ear right away . and the sound ... amazing ! it dround out all othe rnoise and you truly hear the base . I have a friend put they on and then scream at he , he do not hear a thing !