英文關鍵字
adjusting
audio
automobile
band
bandwidth
broadcast
closeup
communicate
communication
compact
console
control
dial
digital
drive
electronic
fine
frequency
grid
hifi
knob
listen
macro
modern
motor
mp3
music
object
panel
power
radio
receiver
signal
sound
station
stereo
system
technology
tune
tuner
tuning
vehicle
vintage
volume
wave
wireless