As a new player, the best way is to buy a model train start set which include model train and plug play tracks, power pack, and controller .
z21 is a modular system:
■ Begin with z21 start and Z21 multiMAUS.
■ Upgrading with a WiFi router and activation code (item 10814) and thus use of smartphone, Tablet-PC, Z21 WLANMAUS and computer (software-protected model train control) is possible.
■ If you already have your own WiFi router and you know how to work with WiFi networks, then the activation code 10818 is sufficient for the aforementioned upgrading.