SuperTooth Buddy Bluetooth Visor Speakerphone Car kit-Black
I've had this for about 7 months now and I absolutely LOVE it!  I leave it on all the time in my car and it's there when I need it.  I charge it maybe once every two weeks or so, and it has yet to completely lose power (I leave it on all the time).  Excellent product, easy to use, sounds terrific - you won't be disappointed!