Lionel 6-14111 Infrared Controller 153IR O Gauge. Die-cast metal structure with infrared sensors that detect passing trains and activate connected accessories. Time delay feature adjusts from 0 to 5 seconds. Dimensions are 5" x 4 1/2" x 3 1/2". New in the original box. Trains and Toy Soldiers is a Value Added Dealer and warrants all Lionel products according with the Lionel warranty. If you have any questions: please leave us a message here or call 1-800-786-1888.