It doesnt however apply in my case as theres enough give in the material and design of my shoes. ? Microphone is excellent and produces high quality recordings without background noise. Plus the burgundy is really a reddish/ purplish brown and comes across as a very pretty brown. im really glad i bought. The auto zoom detection picks up people from the overall 180 degree view and is really nice vs the typical laptop camera that a small group has to crowd around. If 3 damp towels are placed one in front of the other, they are touching and would not dry properly. Only had these a few days, but long enough to say these are fantastic! I waited to see if it was going to be part of the Prime event and it was. I usually just use one or the other bud, so it might be better if youre using both- No way to check the case battery charge. I cant tell you how many times I have almost slipped stepping out of my car into the driveway (a dry driveway, not wet) or from a carpet to the hard wood floor or even just walking in the house with these flip flops!