This looked like an interesting and relatively low-cost option for my wife's car/cell phone, since she hasn't found a bluetooth headset that fits her ear comfortably.  Unfortunately, we cannot get this unit to pair with any of three cell phones (iPhone 3G, two new Nokias).  It goes into pairing mode as advertised, but none of our phones can find it (they all find all of the headsets and computers we have tried pairing with other than this unit).  Makes this rather useless, and I would strongly suggest testing your phone against one of these before ordering.