Abstract: An entertainment system includes a cartridge provided with read-only memory (ROM) for storing digital data therein in accordance with predetermined addresses, and a player device structured to receive the cartridge therein. The player device is provided with an address register communicating with the ROM for identifying and activating one of the addresses, a digital to analog converter for converting the digital data to analog signals, a data bus for delivering the digital data from the activated address of the ROM to the digital to analog converter, an amplifier for receiving and amplifying the analog signals prior to delivery to a sound projecting device, such as speakers, and a timing circuit for activating the address register and digital to analog converter in alternating sequence.

Abstract: An entertainment system includes a child's seat such as a car seat, high chair, or stroller, an audio source supported on the seat, speakers positioned and disposed at preferred audible locations on the seat and conductors extending between and interconnecting the audio source to the speakers. A video device, interconnecting to the audio source, may further be provided for presenting a video picture at a preferred viewing orientation relative to a child in the seat.

Abstract: An audio apparatus for a child's seat includes a compartment for carrying an audio source therein and speakers positioned and disposed for optimum audibility relative to a child in the seat, and conductors extending between the speakers and a jack in the compartment for electrically interconnecting the audio source to the speakers.