Guys I need some help picking out a decent blue tooth for blackberries. I have bought 3 of them so far, and they either have battery problem or I can't hear clearly over the ear piece.

i have tried many and I prefer plantronics. Most of them are good. There is no perfect headset. I've used the jawbone 2 and it's loud on both ends, not so clear to other end. It's terrible in wind. The plantronics 510 is/was my favorite. It's great in the wind. I currently use the plantronics 925 ---best feature is 5hr battery and the charging case gives you another 5hrs. For a budget headset I have the plantronics 520- works good - got it for $35 on ebay new. Just I guys opinion