I have some friends who use this headset with their Motorola phones and it worked great, so i decided to get one.... Unfortunately the VX-8100's Bluetooth doesn't work very good. I have to hold the phone a few inches from my head to be able to hear what people are saying, otherwise there's too much static. I might as well just flip the phone open and not use the headset. I have since tried a couple of other Bluetooth headsets and found the static problem with all of them. The headset works great on other phones, I tried it on a friends 8300 and it worked flawlessly.