Simply one Naxoo card - cable free?

Might be a stupid question, and search did not help.

I am looking at Naxoo Simply One Digicard. The instructions on Naxoo site indicate that the use is totally cable free - i.e. you simply plug the card in a compatible TV (TV still needs to be plugged in to a electric socket of course and there you go... i.e. no need to cable connection from the wall to the TV set.

Is this possible? Does the card get signal remotely somehow, or Naxoo is misleading a big time here?