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!"
instead of bitching about the price, have you ever tested the product? Changing the powercord on a unit makes a HUGE difference, let it be an amp, subwoofer, cd and even a TV. It's a shame this site and their writters always end up bitching about high-end pricy products geared towards performance but will drool over the new Tivo/iPhone/etc crap out there.
High-end is about performance, and better products come with a price.
So show me a scientic test that proves that using a "better" power cable improves performance.