Woods 59742WD, 15A 120V Indoor Programmable Remote Control Electrical Outlet

The receiver includes a programmable feature that allows pairing with additional remotes/receivers. Simply locate the A, B, C, D on the back of the receivers, and turn the arrow to line up with the 1, 2, or 3 within the A, B, C, D channel of your choice. Then locate the A, B, C, D channels on the back of the remote and line it up with appropriate channel used on the receiver(s). The remote control includes ON and OFF buttons for up to three different channels and each channel can control up to 4 receivers, allowing you to pair up to 12 different outlets.