Oh, also didnt the like V6/7506, not enough low end for those. I bent the top backwards away from my ankle which solved it . I already owned a pair of AKG wired headphones which I have always thought were pretty good, so I bought these and have not regretted it. Also, the IGI report # could not be verified. I rely heavily on Amazon reviews when purchasing products and I just wanted other mamas to be able to order with confidence! Shure has concentrated the tech where it matters most to them, getting the best sound quality and so they have included all the major Bluetooth codecs, included a wired DAC function and focused on the drivers. The slip on style is easy but snug enough to stay on. I highly recommend the Comply Comfort tips to anyone who is looking for more comfort, with better sealing, and consequently better sound quality. That?s more on me then the company. Presumably someone ignored planned obsolescence but the company has since remedied that; they no longer make this style and charge $59 for new inserts that are nearly impossible to find.