A sound-based move (Japanese: 音技sound move or 音の技sound move) is any move that uses sound. Sound-based moves have a variety of unique properties and effects. The mechanic was introduced in Generation III.
Sound-based moves used by a Pokémon with Punk Rock are boosted by 30%. Pokémon with Punk Rock also take half damage from sound-based moves.
If a Pokémon holding a Throat Spray uses a sound-based move, the Throat Spray is consumed and boosts the holder's Special Attack by one stage.
While not an inherent property of sound-based moves, from Generation VI onward, all sound-based moves (except Howl) can hit Pokémon behind a substitute regardless of the substitute.