amazon says: The Nokia is light weight, slim but a little longer than most others, has good sound quality and noise cancellation...The overall quality was very good, but I do not want to take a chance on it going dead while on the phone...That within it self makes it a winner but the Gennum nxZen almost works that good...see more

amazon says: I thought my Motorolas were bad, but I found something that's even worse...It has a good mic -- people say they can hear me very clearly...If you don't like looking like a cyborg when you are not on the phone this is a good compromise...see more

amazon says: Otherwise, I would highly recommend it to users of the 650, with which I know it works very well...I'm not a big fan of the hook-like plastic headsets so this was a good fit for me...Talk time is not too long, about 4 to 5 hours, but I charge it everyday, so that's not too bad 2...see more

amazon says: The Nokia was in the middle of the pack on this; there were times when it was fairly good, sometimes wretched, but certainly never excellent.) 4...Although I never heard it myself, my callers sometimes experienced echo; overall sound quality was mediocre besides that.) 5...I do not recommended it for loud environments at all.) 6...see more

amazon says: Sony Ericsson is pretty good, but not too sturdy...That is good if you have 2 or more phones with bluetooth like I do...I have good hearing but this thing is hard to hear...see more