Abstract: A sound reproducing mobile for connection to cribs or other structures holding an infant. The mobile includes a housing in which is releasably secured an audio cassette player. The housing includes clamp means for releasably securing the mobile to the structure holding the infant. The cassette player, when operated, reproduces comforting voices via a loudspeaker and at the same time provides electrical power to a motor for causing the movement of overhanging decorative mobile elements. A voice actuated switch is provided to operate the player and mobile in automatic response to the detection of ambient sound. The player can also be operated manually. The cassette player is releasably secured to the mobile so that it can be removed for independent use thereof.