The easy-to-set systems allows you maximum flexibility when determining how the trailer should respond to a braking event Snap-in dash mounting clip and removable electrical connector allows the unit to be quickly stored, or moved to another vehicle Works proportionally in reverse No level adjustment necessary, adjusts to varying terrain as you drive Digital display shows voltage to trailer during braking The Boost feature allows for customized braking Pre-assembled wire harness for simple hook-up and quick disconnect Diagnostic features incorporated in LED display Electric trailer brake control for up to 3 braking axles Limited lifetime warranty (some conditions apply) Display boxed - complete as shown