Summary: I purchased these as I was wanting some earphones with a remote and mic on, as my present set of earphones (Shure SE215) do not have a remote and mic. I tried every possible type and size of the vast choice of included ear tips and I also tried a smaller sized tip in one ear to the other, but I still was disappointed with the overall sound quality. I played around with the various tips for around 3 hours to try and get the best fit/type for my ears.
Summary: Excellent build quality (e.g. stainless steel jack head, thick cable finished in protective wire to avoid common fraying), extensive accessories, and superior warranty (3yrs vs standard 2yr). However phone call sound quality is abysmal, with constant echo, feedback, and listeners more likely to hear background noise than my voice. i hope this is just an exception and not the rule, but nonetheless I'm exchanging the product.