Portable digital player compatible with a cassette player

摘要

A portable audio device is provided and includes (a) a housing shaped as a cassette and insertable into a cassette deck of a cassette player; (b) a digital audio player in the housing, the digital audio player including a memory and an audio chip for storing and subsequently playing digital audio information through at least one speaker; and (c) an emulator in the housing, the emulator operatively communicating with the digital audio player for emulating the digital audio information as analog audio information readable by a magnetic playing head of the cassette player for playing the digital audio information through the cassette player.