Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
I had one for a little bit, but like the article points out, the lack of 2 way comm was a major disadvantage. Only time I used it was when my DVR was busy recording 2 programs and I wanted to watch a 3rd in HD, a rarity.