[Leslie does have the radio still on, and she's thrown off by how the voices are doubled over the two devices.]

My, um. Um. My name is Leslie, and I'm twelve years -- eh? That's my voice? That doesn't sound like -- um.

[Time for a child from pre-voice recording to get that strange sensation of "does my voice sound like that to other people?!", combined with the distraction of having it come from two directions. (She would also be very embarrassed to know that including an age in the introduction on the radio is a very kid thing to do.)]

I'm sorry, um, I need to -- please, wait a moment. [Time to scurry over to the radio to turn the volume there down.]