US Patent 8666524 Portable music player and transmitter

A hand-held music player for use in conjunction with radios, including a casing, a receiver socket on the casing through which digital audio data is received, a digital-to-analog audio converter housed within the casing, a first transfer socket on the casing through which a song is transferred to a radio transmitter, a second transfer socket on the casing through which meta-data for the song is transferred to the radio transmitter, and a dial on the casing for selecting a song for playback. A method and a computer-readable storage medium are also described.