Carrera makes a huge assortment of accessories to add to the vast line of all-in-one kits both wired and wireless. The Carrera Economy Controllers include 45 and 25 OHM basic slot car controllers. The Slot Car Wireless Pro-X Set lets you experience the freedom of no wires. Use this wireless accessory set with any Evolution Pro-X, Evolution, or Exclusiv race tracks. It allows the selection of up to 4 different frequencies on the controller for use with up to four cars and offers infrared or standard modes. The Digital Pro-X Controller is a 1:32 scale controller for digital race sets. So no matter what your race involves, these slot car accessories are built to work consistently with your imagination.