I received this product as part of a review program in return for an unbiased review. But if you want FLAT reproduction. Well made and she?s thrilled! I freaking love these. Nice fashion sandal for the price. I love the optional Bass Boost button, mic mute button, Red LEDs, conveniently located controls with a great feel to the volume dial and on/off switch. Theyre OK but not perfect. Amazon sent me a 2nd pair and those did the same thing the 1st day of wearing them. Bose 700 für mich unangenehm, da zu viel Druck auf dem Kopf. For hifi-use they are not recommended - they are not neutral - too much bass.