Soundproof

Introduced in Generation III

This Pokémon is immune to moves flagged as being sound-based. Heal Bell is unaffected. Uproar still prevents this Pokémon from sleeping. This Pokémon can still receive a Perish Song counter through Baton Pass, and will retain a Perish Song counter if it acquires this ability after Perish Song is used. Howl, Roar of Time, Sonic Boom, and Yawn are not flagged as sound-based.

“Soundproofing gives the Pokémon full immunity to all sound-based moves.”