I am using the Jabra BT350 with a Sony Ericsson K750i.  This works like a charm.  It took a while to set up (problems with resetting my phone), but once I synced the two devices, I have not had any problems.  The sound quality is superb, and the functions are outstanding.  They include vibrating alert (I've turned it off), call accept and call decline (much needed).  It also allows you the opportunity to automatically call the last number dialed. The voice dialing also works great.  I was not able to record the name through the BT350, but once recorded, the phone recognized the name when spoken through the BT350.  An addition, the battery life is great.  I have not had to recharge it in a while.  All and all, this is a great choice for a "handsfree" set to be used with a mobile phone.