Wireless trigger for NX20 shutter?

One of the reasons that I bought the NX20 was, the literature said 'remote operation possible'. It turns out that what Samsung mean is a manual cable release, not my idea of remote! I want to take nature and high speed action by wireless control, I expected the usual 2.5mm jack socket but instead there is a micro USB socket. Since Samsung's cable remote connects to that, there has to be a way of using it for a real remote operation if only we knew what pins do what, and what the electrical requirements are.Does anyone know how to do this?