Stereo Bluetooth Headset & Nokia 6230

Hi,

i am using my Nokia 6230 as a MP3 Player.

First of all is it possible to use a stereo bluetooth headset with my Nokia
6230? Or is it only mono on both speakers? or maybe only mono on one
speaker?

Second of all, what stereo bluetooth headset would you recommend? Do they
sound better than the "one ear" headsets and do they have a "real" bass? Do
they also have a microphone?

thanx