I have been using Jabra FreeSpeak headset for the last 5 months with SonyEricsson T610 phone. Setup took me about 10 minutes, and fairly straightforward. I was amazed the clarity of sound quality, and nobody could tell that I was using headset. Battery life was fair, and I normally charge every other day. This thing works much better than untangling headset wire in the middle of traffic. Extremely happy to own one.