OKAY FOLKS, I have a pair of these, well these type/similar. Lemme give you some RUN DOOOOOWN.
Okay so, first of all, these appear to be the Gen2, so that's a good start. The Gen1s apparently broke down a lot, the Gen2s are fairly solid in lifespan. Had mine since Christmas, still going strong.
Okay actually using them. The sound is pretty good for quality and volume, however if they don't fit in your ear for the most part, then they won't be that loud, if you like it loud, or you're in a loud environment. A minor issue, I'm making it sound worse than it is.
The biggest issue with these. So they are made for sport use, so they have a fairly tight fit. Like, a really tight fit. If you have a medium to large size head, and glasses like me, you'll have some discomfort after about an hour or two of use. You'll want to stretch them out somehow for a week or so.
Range and battery. AMAZING. simply amazing. I've never had it just die out of power without giving it a reasonable charging practice. Plug it in after some use to my computer, and it's been good to go when I needed it. Although it does not have a batter monitor to it. The range, I've used it easily across my house without it cutting out.
The phone portion. The mic on mine is terrible. Because it picks up starting out at your ear, it has to pick up a LOT of area, and the quality is lackluster, but it can get the job down. The slightest amount of wind though wreaks havoc with people hearing you.
Anyway. I paid WAY more for mine, and I think it was worth what I paid. This is a GREAT price, and if you're looking for some headphones for your phone/ipod/etc when you're on the run, or your computer/laptop (if you have a bluetooth system in it), these are a pretty solid option to consider vs other wireless headsets.
so many woots so little time ( or money depends on how you look at things ~_^)