Many of us own a stereo bluetooth headset for our cell phones or ipods. These units use A2DP protocol to send audio in stereo to a heatset. These headsets usually incorporate a microphone. If Sony makes this possible everyone could have a steeo wireless headset for $50ish dollars. My bluetooth headset has an in house range of 35 feet and 60 outside. With this added feature I think it would grab a portion of the opposition's audiance. fingers crossed!