The high pitched thingy is his actual voice.
From Wiki:
Tuvan throat singing is one particular variant of overtone singing practiced by the Tuva people of southern Siberia.
The art of Tuvan throat singing is a style in which two or more pitches sound simultaneously over a fundamental pitch, producing a unique and vibrating sound.
This was cool. I’m sorry this man died.
Wow, I never would have guessed that. Thanks for letting me know!!!