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!"
They also don't care that within 1-3yrs that 200w PSU won't be able to
power the computer due to capacitor aging, and that due to its lower
quality it will end up shortening the lifespans of the other parts in your
machine before it goes.
Also just cause I have an 850w PSU doesn't mean I am pulling the maximum
amount of power constantly. Your computer only uses what it needs.