portable sound systems [1]

Small self-contained sound reproduction equipment that can be carried easily from one place to another.

portable compact disc player

Portable CD player.

earphones

Small speakers placed directly over the ears to listen to sounds from the player.

display

Liquid crystal display showing instructions for setting or operating the player.

portable digital audio player

Portable player for digital music files.

clock radio

Portable radio with a built-in alarm clock whose wake-up mechanism is a buzzer or a radio station setting.