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!"
And, ignoring the fact that the MPAA is continuing its record of incompetence regarding encryption, is their other problem: the more they try to lock it up the more they restrict their market.
The biggest drain on MPAA income is not pirates. It's the people who lose interest because they are treated as criminals. No one likes waiting for 3 minutes while the Blu-ray disc runs all it's copy-protect code, so that the 20 trailers can begin.
MPAA members should ponder this the next time they are _forced_ to fly someplace and have to stand in the security line.