Ive had them for a few months now, understanding it takes time to "break-in" new shoes. Really dont recommend for your phone. I rely on the 10 hour battery life since I work 10 hour shifts and usually only use one earpiece at a time. I found for the K550 you could stretch the wide side of the pads over half of the earcup, and hook part of the band into the notch in the headphones to hold one side in place, while you get it over enough of the rest that you can begin to rotate the pads (so that youre feeding the earpads band into the notch in the earcup). You will need to have or buy a separate microphone arm with a stand or a clamp. Its two best new features are the aforementioned ability to work with 29 inch wheels (and by default, 650 or 27. Sehr bequem immer wieder gern. so after a lot of consideration I decided to take heed and trust that the reviews were 100% genuine and not just one or two persons misfortune. It also is a little wobbly, like a uneven chair. These scrub pants are AMAZING!