I have owned many bluetooth earpeices (10), but this has been by far the worst I've ever had. It is very expensive and it has by far the worst sound. I can't hear well and the people I talk to report that they do not understad what I am saying. It gives too much static to both sides. My listeners usually ask me to use only the phone or get another one. Once I use the phone only, everybody can hear well. For the first time, I am getting another buetooth withyout loosing it. This model claims to have noise reduction and it is not true. I have owned the Motorola 320 and 700, the only problem I've had with them is that they do not stay on my ear well because of they get caught on my hair. But the audio has been good from both sides. The best model I have owned has been the JABRA 500 which is in back order. It is a little big, but it stays well on my ear and it does well with my long hair. I am in the waiting list for one of these.