SuperTooth Buddy Bluetooth Visor Speakerphone Car kit-Black
I have had the worst luck losing and breaking all of my ear pieces for my phone.  So I thought I'd give this a try.  I was definitely skeptical because of the price but this little guy does work great.  You do have to adjust the volume a bit so that it's not too loud but the volume is great, and the battery life was great too.  I don't usually remember to turn it off and I've only had to charge it ever other to every 3rd day.  Which is great considering what I just mentioned about forgetting it turn it off!