Not a big deal, but Id probably use something else if it was totally up to me. So within a couple of days of starting to wear the left foot, they look and feel basically even. These headphones are AWESOME. sweating larger issues life hands me. Other than that they were ok but I wasnt able to actually wear them to see how they held up. They work really well on wooden surfaces (not so much on speckled, painted walls. ??????. Nice solid case. sometimes 1second out. I am overall satisfied with the product!