Normally, WHISMUR’s voice is very quiet - it is barely audible even if one is paying close attention.However, if this POKéMON senses danger, it starts crying at an earsplitting volume.
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.