X10 Pro PM5900 Powermid IR Repeater Set. Allows multi-room control of A/V devices. The Transmitter (ST539) converts IR signals from your existing remote to RF. The Receiver (RE549) converts the signals back to IR. An IR Extender cord (PEX04) can be used to better locate the Receiver.
Additional Transmitters, Receivers and Extender cords can be ordered separately.
