After reading the critical reviews, I decide I could live within the limitation of the Aliph jawbone. My main utility is for receiving or making calls while driving with windows up and the airconditioning fully on, not for making calls in the face of wind noise.  I was told my voice quality is a little muffled but is more intelligible in the car with much less road noise.  I made a call from the computer room floor next to the roaring blower fans of the mainframe and none of this racket was heard on the other side.