The audio is often digitally boosted to levels that can be harmful if you are wearing headphones.
It belongs to a genre of "bait" videos where the thumbnail and title suggest one thing (fashion/lifestyle) to lure in a specific audience.
It trended heavily as a "troll" link. Users would share it in comments or group chats without warning to startle their friends.
After a few seconds, the footage abruptly cuts to a terrifying image—usually a distorted face or a "jump scare" monster—accompanied by a deafeningly loud, high-pitched scream.