Controllers thumb|X10 controllers: A simple controller (bottom left), a radio controller (top center), and an original controller (bottom right) usable with an ultrasonic remote control X10 controllers range from extremely simple to very sophisticated.
Controllers thumb|X10 controllers: A simple controller (bottom left) a radio controller (top center), and an original controller (bottom right) usable with an ultrasonic remote control X10 controllers range from extremely simple to very sophisticated.