About the Tractor Truck Multi-Function Control Unit Tamiya presents incredible sound and action options for any 1/14 scale R/C Tractor Truck with the all R/C Tractor Truck Multi-Function Control Unit. This system, when mounted on the truck is located inside the cabin with speaker to the front and the MFC-01 unit to the rear. The control unit is mounted inside the left tool box for easy access. An ESC has been built in to the unit, enabling realistic running at very low speeds. A 4-channel R/C system activates all functions By using your transmitter sticks and the trims you can control the truck movements (forward/backward running and turns), horn, motorized support legs (Item #56505 - sold separately), headlights, position lamps, roof lamps and speed indicators. You can also activate the back lamp, tail lamps and blinkers/hazard lamps as well as engine revving with 24 radio-controlled sounds that have been digitally recorded from an actual tractor truck. 20 LEDs reproduce headlights, indicators, roof lamps, speed indicators, fog lamps, tail lamps, and hazard lamps, which can be turned on/off by using a transmitter. Includes built-in speed controller.