Pricy, but worth every cent of it. I coupled it to my Plantronics BackBeat 903 headphones without reading the manual (just pushed the connect buttons on both items for a few seconds) and fell in love with it.
I use it to watch TV while my wife sleeps or to listen to my iPod Classic. Excellent sound quality and no discernable delay between TV images and audio. With line-of-sight the range is approximately 12 meters. However, walking to the next room drops the connection in most cases. No problems with the iPod in my pocket though.
Since the transmitter dangles on the cord most of the time, I suspect that in time this could be the weak spot. Apart from that I'm extremely pleased with it.