I think the reason that it changes and ruins the sound so much is due to the size of them, when wearing these your ears are at a greater distance from the earphone than they normally would be with the defaults, so the high and low increase isnt as effective and instead makes the mix muddy. I mainly bought it so when I come back from where I just place the watch and do my duties then get it strapped on and go out. So - during the very first use of the cable, the metallized braiding fell off. all in all, i would recommend. If your in a new build these are a must, due to the lackof solid walls to be able to use raw plugs etc. The answer/skip track button was also very sensitive. Kind of disappointed I cant use half of the tops in the pack but the quality of the DS4 style tops makes up for it. But once I got them to fit me I just slip in and out of them. There?s sticker you have to peel off before using maybe to protect it from scratches. I reordered them in an 8 1/2 WW and they are perfect.