The specification that matters for a zoom eyepiece is the apparent field at the short end and at the long end, because most zooms give a narrow field where they are least useful. Publishing both is what separates this one on its shelf, and the page quotes them as published.
Parfocality
Whether the eyepiece holds focus through the zoom range is the other question the shelf is compared on. It decides whether zooming is a continuous action or a series of small refocusings.
The finder
A red dot finder, judged on reticle type, brightness adjustment, battery and bracket fitting like the rest of its shelf.
Reading a Baader Planetarium page here
The published figures are unusually complete. That is the reason to read the page, and it is also what makes the price legible.
Any figure written into the body of this page was true on the day it was written. The amount shown next to each instrument is requested from the retailer as the page loads, and it is that amount, not the text, that stands.