I purchased this product over a little over a year ago to use with my RAZR based on mostly good reviews. After some initial usage, now I rarely use it. Why?1. Battery life deteriorated rapidly, and the battery cannot be replaced. I now can talk only 10 mins before I get the beeping and then a sudden disconnect. So it has become useless. I don't like paying a lot for a premium item that is throw-away.2. Volume is ok, but only when I press it close to my ear. Unless I do that, it sits too far away from my ear to be heard well except in very quiet conditions. This is true even at max volume, so I found that for important calls I usually have to switch to using the phone directly.3. Fit: I can find no way to make it feel like it is securely on my ears (which are not unusually shaped or sized in any way). It has a tendency to fall off easily so I always feel uneasy when wearing it.I bought a corded earpiece as an alternative, and although the cord is a nuisance, at least it always works reliably!