tool 6 Promote Discussion

I tried Voxpop and Edmodo but I didn’t like it for the little ones. I am looking for something that requires little or none re teaching (in my perfect world).
I am going to try voicetread for the beginning of a unit for the kids to record what they notice in the picture and promote their oral skills without the teacher presence. Perhaps I can set one of the netbooks with it, (does anyone knows if the notebooks have microphone integrated?) maybe I can open my voice threat and have the whole kinder voted for their favorite animal after we comeback from our only one fieldtrip.