Does exactly what I would expect.  It just works!  Easy to pair with my Blackberry 8830, plenty of volume from the speaker.  People I call do not complain about voice quality so must be good enough!  Only slight negative is only included charging solution is a 12V car charger but Amazon does have a AC to 12V converter for about $12.  So far I have not bought it, claimed stand by time of 200 hours seems real so do not have to charge very often.  Auto shut off after 15 minutes of no blue-tooth connect helps save the battery.