It's effective to use this emoji when strongly asserting your opinion or when you can't contain overwhelming emotions. It conveys intense feelings like, "This is so exciting!" or "I absolutely have to say this!"

Like K-pop fans cranking up the volume for their favorite artist's music, this emoji is used to widely publicize a message or campaign. It symbolizes "amplification" in a modern sense, representing the intent to raise awareness and build influence around an issue on social media.