The controller is wireless but comes with an auto charger. It is easy to use and even includes a six-LED flashlight (hold down on the right arrow button for three seconds to turn it on/off). The left arrow button will cycle through the choices. Three clicks will put arrows next to LR and RR. Use the up arrow to select the air pressure (keep a minimum of five pounds in the springs at all times) and press the select button. The controller fits nicely on the sun visor with the supplied clip.