The Campagnolo Super Record Wireless Front Derailleur is responsible for managing your 2×12-speed system with accuracy and reliability. This derailleur uses Bluetooth connectivity and completely wireless function to communicate with your bikes control commands. Please note that the derailleur does not come with batteries and a battery kit needs to be purchased separately. A quick-snap magnetic charging port along with color-changing LED lights make the quick charging process even easier. The precision of this component helps the chain move incredibly fluidly, even under maximum loads. The construction of the derailleur helps to deliver maximum stiffness while shifting. The Campagnolo Super Record Front Derailleur is an innovative piece of technology that is sure to improve your ride.