LEGO EV3 Infrared Beacon Remote Control
With this LEGO EV3 Infrared Beacon in your hands in conjunction with the EV3 Infrared Sensor (not included), you can remote control any LEGO Mindstorms machines within a 2m distance. There are 11 button combinations built-in for the remote control functions. The Remote Control's beacon can also be turn ON, which serves as a tracking device for the LEGO Infrared Sensor to follow.