Under each video on eJOY is a vocabulary wheel
which gives you a closer look at the type of vocabulary used
With frequency, you can see how much of the words are
essentials, common, uncommon, rare or extremely rare
If you click CEFR, you will see CEFR based difficulty level of the words used.
In this video, for example, A1 is the most common difficulty level
which means this video is not so hard to listen to
You can evaluate whether the video is appropriate for your students
based on this information
Under the wheel, you will see a test based word distribution summary
with the number of idioms, essential words for IELTS, TOEFL and so on
If you need a video with more IELTS level words for example,
this information will come in handy