Above all remember that they are BOSE. when you put on some bose choses.Tu Achte brand. The purity of sound, the collection's outdoor lments dtriment of ... prfre I opt for the purity of sound. And then we have different CRITERIA each. Plus he has criticized the better. Good or bad. He talked about. He does not put the listener in isolation. And that's good. Listen to You're the people who talk to you, at the same time you are working by listening to music. And you do not have to take your headphones every time we talk to you for t'embter, and you enjoy your dchirer cratif. I LOVE. Point as positive about the urban environment, positive and ngatifs.ahahaha we forget that we have headphones. And I think it's better to Art Garfunkel cost of the above as Beyonce. For our answer quickly to question 1.je uses non stop since yesterday 2.I rpondu loud and clear for what I love most, for what I like least is that the son. 3. I tried the headphones "koss" about 70 euros, and standard headphones type "lg" and Sony bought the very first to Japan (intra) in duty-free and many other headphones like the sony d "before before, with foam pads, 4.The report quality price is reasonable, the more expensive the better the quality. It's like a, 5. I think with the exprience I would do the same choice.