What it does today, on F3 firmware 2.20:
- Speaks the highlighted menu item as you scroll, and the menu name when you enter or leave one
- Says "selected" on the current value (sample rate, file format, language…)
- Reads popups: SD Card Full!, Low Battery!, No SD Card!…
- Reads Execute/Cancel dialogs: format, delete, exit USB audio, factory reset…
- Talks you through Set Date/Time, even after a flat battery
Recording and monitoring are untouched.