A number of Kendo components could do with better support for screen readers, including:
- Pagination (eg in a grid): page links should read something like "Go to page 1", not just "1".
- Dialog's labelled by and close button less confusing - it currently reads the whole header row, several times in a row.
- Upload / external drop target: Upload hints are running through without a gap.
- Grid: the header is confusing noise, it reads out "table with zero rows and zero columns" (depending on grid scrolling settings)
- Date / date range inputs: reads "day/month/year" but not the field label, it's very hard to navigate the date picker.
No doubt there are more than the above.
Effective screen reader accessibility is as much about what you skip as what you add. Where possible, audio prompts should be short and clear, and not produce excess noise.