these be the best headphone I have ever have the joy of use to listen with ! I love it ! the sound be so crisp and clear , the noise cancellation really work ! they fit so comfortably in my ear , and they do not fall out unless you want they to . I will definitely buy this again , except there be one thing you should be aware of . I have not own they for more than 4 month , when one headphone quit work . I be very disappointed . after all that time of enjoy highest quality all around , without empty my bank account for it , they break after normal use . I believe that this be a fluke , and I be already purchase a replacement , but be aware of this , and keep the warranty , which I do not . overall , buy this product !