Advanced speaker features and connection with quality

I want know more about speakers. I want to buy Audio Airstream WS100.What are the specifications of this speaker? How much does it cost? What are the available ports for this speaker? Or does it connect solely with wireless? What are the available peripherals in the package? What do you mean by WFD? What do you mean by SKAA? What is the functions and useful aspect of it? What are the available speakers with this? How does it perform? Please provide feedback and thank you!
