英文關鍵字
amplifier
audio
background
black
brown
cable
closeup
communication
connect
connecting
connection
connector
cord
device
earflap
earphone
electrical
equipment
finger
hand
headphone
headset
industry
information
jack
line
listen
macro
metal
motion
movement
multimedia
nest
nobody
object
player
plug
recording
silver
socket
sound
stereo
studio
switching
technology
wire
wood
wooden