Scorpions "the zoo"

[Nynvolt]

What do you call the effect that makes that incredible sound?

[Nynvolt]

You can hear the same sound in "rocky mountain way" -Joe Walsh
here at time marker 3:10 http://www.youtube.com/watch?v=Rt75y38J00s

"the zoo" -Scorpions time marker 2:42 and 4:10 http://www.youtube.com/watch?v=H18irGKTbS0

Maybe if I'm more specific I'll get a reply. :p

Cheers

[Arcarix]

That's a voice box. Heil makes one.