Judging from the advertisements, I received this product expecting great things - superior noise cancellation, comfortable fit, clear sound, etc. I cannot provide feedback on any of these features, because the earloop broke within 30 minutes of trying it on. Jawbone Customer Service has failed to provide a replacement part. While I wait, and wait, the little rubber strip that covers the charge ports has fallen off and dissapeared. This is a very poorly made product. I am buying a Plantronics.