I am getting them for my sister for Christmas. We wanted to check everything out before setting everything up for her, and we found these were made well, had good sound volume and quality, were comfortable for a decent length of time, and overall were good headphones. Me di cuenta de que venían pisados y sucios por dentro y por fuera. The shoes are a gift for our daughter. The cutest Docs ever I had to move my phone to my breast pocket to get it to be consistent; keep this in mind. Instead of the suggested hardware. A natural arch makes flats sometimes very uncomfortable, but these were not. Also, be careful when sliding the cover down; I can see how if you do it quickly it may tear. For me, Biotene does not live up to its reputation or claims.