Any Bluetooth wireless speakers that you like?

I'm looking to add sound to the living room in a WAF friendly manner.   Gotta be inconspicuous and no wires showing!

I'm thinking a wireless Bluetooth speaker that I can connect to from tablet or Smartphone running my favorite music apps is the way to go.

Any particular good sounding ones that you have heard?

The retro-styled Marshalls would fit in aesthetically I think.  My wife likes retro!  Maybe the portable model.

Thoughts?