Plantronics Backbeat GO Bluetooth Stereo HeadsetProduct Review (submitted on October 5, 2012):
So this headphone is pretty good, in its own category, i.e. Bluetooth ear-buds. I have had other over the ear as well as in ear (but not ear-bud) BT headphones before from Sony and Plantronics and I can say that this pair is best by far. If you want a better sealing, you may want to spend another 20 bucks for Comply ear tips. The only complain, as perhaps you might have seen in other reviews is that their max volume is a bit low. They might have done it even deliberately to increase the battery life or protect your ears, but either way, I would like to have it there. The sound quality is OK compared to a normal headphone and good for a BT ear-bud this tiny. I guess the gist of my review is that you should be aware of the compromises you are making when you are buying this (or perhaps any small BT earbud).