function
accessory
activation
adjustment
alert
audio
black
cable
circuit
closeup
connect
connection
control
cord
current
device
dial
disconnect
electric
electricity
electronic
energy
equipment
fuse
green
hardware
indicator
installation
interface
knob
light
manual
multimedia
operation
plug
power
production
professional
ready
rotate
safety
secure
setup
signal
studio
supply
switch
technology
video
wire