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!"
Yeah, because DRMed downloads on a hard drive are just so-o-o-o-o much more portable and usable than a small, plastic disc that can be used on any set-top/portable/built-in DVD player in any car, van, laptop, or home.
DRMed downloads FTW!!!!!!!
Not.