Enjoy the ultimate freedom of wireless remote control … with the plug-and-play simplicity you expect from LGB! Just unplug the cable from your Universal Remote Controller (LGB 55015) or LGB 55016 Handheld Locomotive Controller. Then plug in this compact transmitter. It fits right inside the remote controller along with batteries (not included). That‘s all! On LGB Multi-Train System layouts, you can use up to eight transmitter-equipped remotes with one Wireless Receiver (LGB 55055). So you and your friends can all enjoy wireless freedom together!