Bluetooth speaker for my android phone

I was wondering if it would be possible to make a blue tooth speaker for my phone. I would plan on using the arduino uno, a blue tooth shield, and a speaker or two. Is this possible and affordable? I read on another thread that the blue tooth shields don't have the means to handle music, but I was hoping maybe someone knows of a shield that can handle it. And if this will not work, why not?

Thanks in advance.

And if this will not work, why not?

  1. Data transfer rate not fast enough.
  2. You need an external D/A for generating the sound.