I don't know if these have improved over the years, but I bought these when they were the first bluetooth headphones available.  The small toggle piece kept going out after a few months of use.  I exchanged it at CompUSA so many times that they gave me one I had already exchanged at one point.  Other people purchased them because they were so wonderful and convenient while they worked.  None of the other people that bought them kept theirs either.  Some kept breaking on the headphone part and others had problems like me.  I ended up with a much better wireless bluetooth headphone that lasted...