User can make large sound waves that vary in power.

Pros:
-user is naturally good at singing and voice copy
-user can vary power of the bast depending on how they feel
-can be used to make user's voice louder
-can be used to create distance in battle

Cons:
-people may be vaporised if too powerful
-many caught in blasts lose hearing
-users are normally mute if not using quirk
-users must eat a lot to use this quirk
-user many have trouble controlling quirk at a young age

Weakness: physical attacks

User has a limit on what they can do depending in how much they eat. If overused users are rendered unable to speak for a short period of time.