LOUDEST Whistle In The World

A 50 cent whistle that is surprisingly loud for the price.

A $6 pouch whistle that forces air through by squeezing, giving a shorter, sharper sound.

A heavy stainless steel $60 whistle that is only slightly louder than the $6 one.

A professional referee whistle with a claimed range of up to a mile, noticeably more powerful than the previous ones.

A survival whistle that generates three tones at once to carry over greater distances.

The loudest whistle in the test, with a 2 mile range and underwater use, loud enough to nearly deafen him despite ear protection.