I bought these headphones about 4 years ago.  It's amazing to me that they still are one of the better bluetooth headphones that can be purchased today after 4 years.  Happy I bought them but if I weren't a do-it-yourselfer kind of guy they would have been useless 2 years ago.  The battery died on them and they wouldn't hold a charge anymore.  I figured out how to replace the battery and ordered it myself from China (a battery that holds even more charge haha) and now they last even longer than they did originally so I'm happy.  Otherwise you can plan on sending them back to Sony to replace the battery after a couple years of use.  Not sure how much that would cost but I'd guess it wouldn't be worth it.  Other than this issue I really love the heaphones.  No problems connecting to my computer (Windows 7) or my phone (Droid X).  On a comfort rating I'd give them a 7 out of 10.  After a while they do irritate my ears a bit but not as bad as other headphones I've worn.  Overall I do like the headphones, although if I thought there was a better set out there I'd probably replace these...

winryan

Gilbert, AZ