英文關鍵字
antique
audio
aux
background
broadcast
business
center
classic
communicate
communication
connection
dial
electrical
electronic
entertainment
equipment
frequency
hand
instrument
isolated
knob
listening
media
metal
music
nostalgia
object
panel
plastic
plate
power
radio
receiver
retro
retrostyled
shortwave
sound
speaker
stereo
tech
technology
transistor
tune
tuner
tuning
vintage
volume
wave