"The smart Gateway box is the heart of the GARDENA smart system. Placed inside the house, it uses your WIFI network to establish a connection to the internet and allows wireless communication between your smartphone and all smart system devices installed in your garden."

The box must be plugged into the mains. :) For any return request, please contact customer service. https://helpcenter.galaxus.ch/hc...

But here you can also find more information if needed. https://helpcenter.galaxus.ch/hc...