Essentially you have to fool the computer into thinking it is an Xbox controller so that it will pair. The bottoms are a rubber plastic material which I like because I can easily wear them on my patio and not have to worry about getting them wet or dirty. The lenses are extremely dark, can’t see eyes through them, makes you look extremely boujee and rich and better than everyone else around you. If your a curvy woman I wouldn’t even waist my money won’t fit. They are firm and non-conforming to the foot. There are no rigorous standards that the company is expected to comply with. Sound quality:I tested these earphones on various different songs that I like to listen to, particularly with pop and classical songs. I am not a representative for this company or any other company, just someone that bought these earbuds back in 2015 :) Washing them inside out helps a great deal, but I didnt figure that out until my second pair. 2/ Je lai acheté reconditionné.