I have gone through several Bluetooth earpieces for my Treo 650 in the past year and this one has ended up as my favorite. When I first started, I bought one and traded it in because I was dissatisfied which the first few. Then I kept one out of frustration rather than satisfaction and lived with it for several month until I lost it. After a few months without one at all I decide to get another. I spent the money on one that looked sexy and was highly rated. But again, the sound quality wasn't satisfactory. When I saw ad on Amazon for the iTech clip at such a low price I decided to give it a try as a backup and am happier with it that any other. It isn't sleek and sexy and discrete, but actually seems more practical than the standard design. I imagine that having the mic clipped to my shirt right below my voice works better than over on my ear especially with wind or car noise. And the clip design makes it easier to not lose.