I found this review of the Hanlin v5. If you scroll all the way to the bottom of the review, they have a video of the unit in TTS mode. The voice is female and sounds similar to what you hear on GPS units. I expect that the EZReader Pro would sound the same (can't see Jinke changing it for a particular reseller).
http://ebookreaderv.blogspot.com/200...in-v5-hot.html