We have the turtle back for Chinese for slower speech repetition. (with the Chrome extension).
Loads of people, including myself wanted a way to hear sentences again slowly. So I've implemented it in my Chrome Extension.
Click the green Add to Chrome and it's installed!
Firstly I should say, the turtle has a different voice to the Duolingo voice. This is both good and bad, it is good because you can hear it heard said a different way, but bad because it isn't consistent with Duolingo (it is female for a start!).
If you're using Traditional you'll get a Taiwanese accent (check the video below)
Here is the snail in action.
You will need version 0.9998 which is already in the Chrome store.
Let me know if works for you. I haven't been able to get on a Windows PC to test it, so I'm curious to see how it sounds.