A portable auxiliary speaker for a playpen or a crib comprising a housing incorporating a loudspeaker, the housing being adapted to receive at least a portion of a framework of a crib or a playpen to mount the housing to the crib or the playpen, wherein the housing includes an input adapted to be operatively coupled to at least one of a radio, a CD player, an MP3 player, a cassette player, a computer, and a DVD player.