answer:If we’re talking the sort of electrical flow you’d get from one or two ordinary batteries, it should be entirely safe. Don’t worry about it. Even a small child could conduct that electrical flow safely. Our bodies aren’t all that conductive, so if a group of people can join hands and complete the chain from one hand of the doll to the other, the current flow would be tiny. I don’t think it works by you completing the circuit that powers to recording. I think the change is resistance between air and body/s probably is sensed and trips a solid-state switch completing an internal circuit to make the doll sing.