bluetooth headsets

From my research it seems there aren't any bluetooth headsets available
that are Class 1 but I've seen plenty of USB BT dongles that are Class
1. I read a review of a dongle where the reviewer said he was using it
with his cell phone and with Skype. The question I have is what exactly
are the dongles for and would it be possible to use a dongle, headset,
and the V3 Razr phone together in order to be able to talk on the V3
with the headset within the range of a Class 1 BT device with the dongle
I guess being the component that would be the bridge between the headset
and the phone since the headset alone couldn't reach up to 100m. Any
comments?

Note: I'm new to learning about bluetooth and working with phones that
have all the features of the current phones on the market. My current
phone is 3 years old and has no java or BT and has a b/w screen so I'm
behind in technology.

thanks
Brandon