Audio receiver (Bluetooth & AirPlay & Airport Express)

Hi
I want to buy a Bluetooth receiver for my iPad to stream my songs and listen to them without having to use a cable.
So I just want to know does everything streams or it's just songs in the iPod ??????

I wonder is there a receiver that receives via wifi. Something like AirPlay but just receiver , not speaker or any other thing.

I also wonder can I stream songs via AirPlay to airport express with my iPad?????

Bluetooth receiver will get all audio.

An airport express is the exact thing you describe in your second question and yes you can AirPlay songs to it.

apple tv streams music wirelessly, videos too, and everything soon with iOS 5(fall)

read this one,
http://www.ipadforums.net/ipad-acces...d-monitor.html

bluetooth mentioned here,
http://www.ipadforums.net/airplay/37...eo-system.html

Thanks a lot