The panda is a small device that plugs into your car’s OBD-II port. It tracks your RPMs, MPG, cornering G-force, battery life, and much more. The panda provides full access to the many communication buses of your car from a computer or a phone. A panda is necessary for the EON to interface with the car. We recommend the car harness and a black panda, to connect your EON to your car. The comma two features an integrated black panda.