A tiny electronic component part; which performs an extremely important job within the EPS electronic group sets. The EPS interface transforms the analogue signals received from the controls into the digital signals transmitted to the EPS Power Unit. But that's not all it does. It is also used to sets the initial configuration & adjust drivetrain settings during a race, as well as displaying battery level. A vital component for the electronic drivetrain, it may be installed on the handlebar mount or on the brake cables The V3 interface power unit will allow users to customize their Campagnolo EPS electronic transmission, choosing the function of individual buttons & levers & settings for the EPS system, downloading software updates & much more. V3 updates over V2: Greater integration & compatibility, even with aero frames Simple, trouble-free recharging – thanks to the new charging port on the interface Improved LED diagnostics Wireless technology permits EPS communication with PC / Notebook / Tablet / Smartphone via Bluetooth / ANT+ Interaction system with the EPS group set via the My Campy App Newly enhanced aerodynamic design New shape fits perfectly on stem or bars New multi-colour LEDs – visible on three sides allowing rider to see information from any position. Thanks to the wireless communication capabilities the Super Record EPS 2016 & Record EPS 2016 group sets can be completely customised. The functions can be tailored to the exact demands of any given cyclist, by way of the My Campy App soon to be available for iPhones & Android devices (launched in March 2016). The EPS group set is no longer a drivetrain with one way communication but rather an interactive system with which the athlete can dialogue with his or her drivetrain. Compatible with: Campagnolo Super Record EPS 2015 onwards & Record EPS 2015 onwards electronic group sets. Chorus EPS retains the V2 EPS interface.