I heard different stuff from different people and was wondering what was the best one in your opinion...

This thread is fairly recent. I'm still voting for the HBH-660.

Matthew

Treonauts is constantly reviewing bluetooth headsets for the palm Treo, but I'd bet those reviews can apply to all phones. A quick search found this review of eight headsets.

I personally have the palm branded bluetooth headset. I'm astonished, in a bad way, that the signal crackles when the phone looses line of sight with the headset. Treo in my left pocket and headset on my right ear gives gives slight crackles. Treo on my windowsill 6 feet to my left and headset on my right ear is nearly unusable.

I guess I was expecting 900MHz wireless POTS phone quality: base station in kitchen, phone .5 acres away in the back yard, clear signal.