Hello Anonymous38
I think, both of you are right.
@ElenaG correctly said that the ticket is valid for 30 minutes. However, a Short Distance ticket is not a zone ticket, you cannot use it freely for travel within zone 110 yet between the entered start/end point. And, the distance between the two stations must not exceed 2 kilometres. I personally find, the description in the pop-up is misleading and not crystal clear. There could definitely be a better description.
Kind regards,
Roland