Touchpoints are totally customizable to your preferences, allowing you to choose which button does what through the SRAM AXS App Interchangeable touchpoints for further customization and comfort based on the rider’s personal preference System is completely water and dust proof Requires a CR2032 battery (included) Pairs with all AXS enabled components. Lighter weight than AXS Eagle controller and a vastly superior range of adjustability. Featuring a "click and fire" two-button design, with an intuitive action that requires the ideal amount of rider input to activate. Interchangeable convex and concave touchpoint buttons for a personalized feel. Unique flippable design can be mounted left- or right-handed.