Meet the OE Mars One: a multi-room 360-degree wireless speaker that delivers surround sound in your home. Mars One comes with a 360-degree cone mid-range tweeter, 360-degree ribbon tweeter, 200-watts of power, and an aluminum alloy case. It has WiFi and Bluetooth connectivity.
You can switch between modes at the touch of a button. This elegant speaker is available for $499 at this time. More info is available here.