When I bought my 650, I got a Motorola HS3 Bluetooth. Never worked right.Noisy, low volume. Sold it off and got a Jabra BT-150 at Fry's for $10 today. Paired it up and it worked, but low volume. I called Jabra and they told me to turn the PHONE volume all the way up. That fixed the problem and I am happy with my $10 Bluetooth!