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Conveniently control an X10 receiver module with an X10 wall switch by installing the X10 PRO 1-Button Keypad Plus Transmitter Base Kit. The in-wall keypad enables manual control for any X10 receiver on the powerline. Hit one side of the keypad's rocker switch to turn the receiver on, and hit the other side to turn it off!
The "behind-the-scenes" transmitter base mounts in a single-gang wall box and connects to Hot and Neutral wires. The included keypad attaches to the face of the transmitter, providing a clean, elegant appearance.

A basic X10 system includes a Transmitter and a Receiver – both sold separately. Transmitters are control devices that send X10 signals through your home's electrical wiring to X10 Receivers. When a Receiver receives a command, it responds by turning a light, appliance or other electrical device On or Off, and sometimes Dim or Bright.
X10 began manufacturing home automation and security products in the late 70s, establishing X10 as a smart home standard. X10 utilizes powerline technology to transmit control signals anywhere in your house over your existing electrical lines, so you can control lights and appliances throughout your home without running new wires! Have complete, automated control over lights and appliances from anywhere in your home with X10.