Designed for use with Freight & Passenger cars. We recomend operating the Remote Coupler Kits using the Kadee® RC Remote System, Other means of operating & controlling the servo can be used with Kadee® RC Remote Couplers. Body Mount Coupler Kit for adding additional remote couplers to cars with a Kadee-RC Remote uncoupling system in place. The Kit includes the necessary components and two couplers to convert 1 car¹ (that is equipped with a factory Kadee #830 body mount platform) for remote uncoupling using the #906 Coupler². The car can be setup to remotely operate a single coupler or both couplers simultaneously. The car must have adequate room inside to mount both the #11120 Standard Servo Kit that is included, & the #11110 Receiver Kit (sold separately). Once you have your coupler kit installed and have the Servo plugged into a mounted #11110 Receiver Kit (sold separately) that has been "bound" to your #11215 Hand-Held Transmitter (sold separately) and you are ready to Remote Uncouple Anywhere*. * Limited uncoupling on curves. ¹ Some cars may require additional modification that the Basic Starter Kit is not equipped to convert. ² Use our #880 or 980 G-Scale Height Gauge to check for the correct coupler height and trip pin clearance.