@hiddenwise:

Egor Nazarov :

Fun fact. You do not hear it when someone calls you.

I_am_Reiny :

I have my personal ringtone

my say :

why those, there must be a trap for the mind as the dog hears the whistle so humans got that hidden code too

royedwidge :

the point?

SAR-ZIP :

Useless fact, that wasn't fun at all.

JOE JR :

so what's your point Ventura

Juan Carlos :

Fun fact call another country and you don't hear the same sound.

Prince Jay 254 :

why did they choose those frequencies specifically?

Another generic name :

This definitely meets one of two criteria for being called a “fun fact”

Simoenchen_was_here :

this is the sound when I am trying someone to connect btw

mayDreamer :

who cares about the hertz?

vincejmusic :

MalinkaJͭiͤbͣbͫitlovers💚 :

436 besser

koki number 1 gp :

😳 wow

muresanusebastian :

Matrix

Mike B :

Mine plays Hot Girl…

Nathan :

hey I got unknown thing that popped up

harleydavidsonstr :

I hate that sound

mthuthuzeli24 :

hw ABT 432 Hz...?

user6159865514158 :

the USA RBT— but each country had a different one- not all world follow this one

ShelLy :

And so?….

Uvlius :

Not when someone calls you! When “you call someone” !!! Ai got it wrong

BlackBird09 :

Why do they do it differently overseas. They seem to only use 440

Juris :

Nobody calls me 😂😂😂😂

lumi-nXT :

440 Hz is the universal "concert pitch" used to tune musical instruments globally.