The Almighty Traplink Professional Receiver Compatible with the professional range of remote controls, and packed with the latest wireless technology. Our radios use spread spectrum modulation and forward error correction techniques to make the communication robust against noise and interference and to increase the receiver sensitivity. What this means to you is trouble free, reliable clay launching time and time again. Over distances so far, that whatever your vision of how your course layout should be, Traplink Pro will deliver and exceed your needs. Available with a Flat Promatic 3 pin connectorOr the new 4 pin round type.The Laporte connector is also available.Tested to a distance of 2 miles across an urban environmentTo program, simply wave the magnet over the top of the unit while the remote control is in program mode. (Magnet tool included with all Remote controls) There's also a button inside just incase you misplace the magnet tool.So powerful the signal can penetrate the deepest of brush and woodland.2 meters of cableAutomatically assigned, and more than 60,000 possible addresses