The Genuine BMW Control Unit Steering Wheel Electronics is a part that is responsible for controlling various functions of the steering wheel, such as audio controls, cruise control, and other features. It is a genuine BMW product and has the part number 61316939817. This control unit is designed to be compatible with specific BMW models and is an essential component for proper functioning of the steering wheel. It is a high-quality electronic unit that ensures smooth and efficient operation of the steering wheel functions.