Well, I bought the treo 650 about 3 months ago and got hold of the treo bluetooth headset 2 days ago. Everything works as described, but not necessary to any exceptional level.The headset has major volume issue espcially if you drive something other than an S class Benz or 750 BMW. I have a Benz SLK. Volume level is VERY VERY low. It's useless when you're driving.Pairing this device is easy if you have knowledge of bluetooth technology. Beware, the unit comes uncharged. You must charge it fully before you can pair it with your phone.Design wise, it comes with an adjustable loop which is smart but requires some customizing.Looks a little boring with not too much style to it.Range is bad. The manual said that the allowable range is 33'. I tried it at no more than 14' (depth of my kitchen) and was bombarded with static.The attribute that I found most annoying is the constant blinking blue light indicator when it's on. Why is this _______ blinking necessary? This works well when you're at a dance club, but looks stupid when it's on the side of your face. Turn it off when you're about to go to sleep or about to commit buglary.One "plus" is that if you buy this headset, you'll get an extra charger that can be used to charge the treo with. I can hear it now: Yippie.Well, I bought this thinking that it would be the perfect headset for my yuppie treo 650, since it comes from the same company. I stand corrected. It's an average headset. If you own a Treo smartphone, look at other generic headsets. They might be a better buy.