LEGO Infrared receiver

Integrate the LEGO Power Functions IR Receiver into your LEGO models and perform functions at the push of a button on the remote control (sold separately). Connect up to two different LEGO Power Functions. The LEGO Power Functions remote control system uses four different channels, allowing you to control four different models simultaneously. Use the infrared remote control to operate all functions of the receiver. The range of the infrared remote control system is at least 10 m. A battery box is required but not included.