portable sound systems [4]

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

portable radio

Equipment used to receive signals transmitted by radio stations.

volume control

Button that controls the loudness of the radio.

bass tone control

Button used to adjust the relative level of low-frequency sounds.

treble tone control

Button used to adjust the relative level of high-frequency sounds.

tuning control

Button used to select a broadcast frequency.

telescoping antenna

FM receiving antenna made up of sections that extend upward.

handle

frequency display

Device showing the broadcast frequency of a tuned station.