Positioned next to the handlebar grip, it allows you to control the main functions of the device without ever taking your hands off the handlebars. It is used in combination with the Bikeplay Pro Expansion Kit (code 1683 with 2 cameras, cable and 2 TPMS sensors) or with the Bikeplay Pro multipolar cable (code C1691), For a complete and even more intuitive management of the phone and connected cameras.