About 2 years ago I did some shopping for a Bluetooth car speaker phone.  I hit upon what I considered the most perfect speaker phone, the Nokia HF-6W.  It cost me over $120, but it was worth it (while it lasted).  It had a powerful 6w speaker and several microphones that tracked the sound source.  It worked great as well.

About a year ago it died.  I assumed it was a 'normal' failure.  I returned the unit to Nokia returns and they sent me a new unit.  This second one failed in the same manner.  Further, after doing a search on the internet I found other people are experiencing the same failure of the Nokia HF-6W and here.  Nokia's warrenty only covers the unit for one year.  This is a design flaw.  Nokia should admit it and do right by their customers.

The way the HF-6W speaker phone fails it that no sound comes from the speaker.  The speaker is dead.  Second, the unit will not reset itself.  When the power button and volume up buttons are pressed simultaneously while the device is off, the unit is suppose to revert to its default state.  The green and red LED's are suppose to blink as well.  I cannot seem to get it to reset.  The unit seems to work otherwise, bluetooth connects, etc. 

Now my wifes unit, unit #3, failed the same way.  Have you stumbled upon my post and are having the same problem?

[UPDATE 02/04/08]
Nokia replaced my HF-6w with their HF-33.  It has a much smaller speaker and no built in retractable phone charger.  The retail price is about 1/2 that of the HF-6w.  I am accepting this replacement under the condition that it simply WORK.