No issues to date; no lag in audio and video, and the case is great to keep in my pocket. definitely not a high quality earbuds by any stretch, but decent/what I was expected. In the patent ones Im a size 4 but in these I am my actual size, 5. PackagingI feel like they could ship me these buds in broken glass and toilet paper and I wouldnt care. My only gripe is that the cover is slightly off from aligning with some of the ports, but I dont see it as an issue considering that the noise cancelling has still worked exactly the same as before the covers were put on. I have bought a pair of white earphones like these and they were really nice. I dont know what these are, but they are NOT a replacement for the Samsung AKG earbuds. Of all the ones I use this has the most firm back support, and covers more area from under hips to lower peck region. These grip socks ARE SAFE comfortable an much nicer than THE hospital ones. Two broke when putting on.