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'm guessing this is targeted to someone that doesn't have speakers, multi-channel receiver (audio amplification), Blu-ray, etc., but I pause at something like this.
First, why does Blu-ray, the last remaining high-definition format, have to be made as a discount, low-price tier solution? Anyone can buy a $400 HTIB (I did originally, before upgrading). I would rather tell friends to buy a HTIB for $600, and then buy a PS3 for $400.
In fact, I probably consider them buy a $400-600 Sony AVR capable of HDMI 1090P pass-through along with a $400 PS3 and then take their time buying some decent used speakers.
BTW, not advocating the PS3 as a gaming console. I own a PS3, will be owning a second PS3 in time, but I have never played a game on any Playstation (360 by choice).