Highest and lowest sounds you can produce?

[DianabolDownie]

Finally found a website for measuring pitch
Didnt want to download anything

Tuner Ninja - Online instrument tuner

Free online instrument tuner. Tune your guitar, ukulele, violin or any other instrument. Get in tune easily and accurately without installing anything.

tuner.ninja

Any "technique" allowed, just don't whistle for the high part
(may not work properly for shitty-mic-cels)

Violently pushed breath through my closed throat for the C#7

 

[wasted]

not a single hertz brocel

 

[DianabolDownie]

Recording of this autism

Also just got (not in the recording):

 

[DianabolDownie]