“I have discovered that the Kobo e-reader can open protected (DRM’d) epubs from libraries.  They are synced by connecting the device to a PC with Adobe Digital Editions installed.  But as far as I know it has no TTS.”

The Kobo wifi has adjustable fonts and views but these can depend on the book that has been downloaded.

Using the free Calibre ebook management service is another alternative when documents need to be converted to an accessible format

Neil – Psychology