Advanced Shifting Performance Its advanced shift logic is inspired by motorsport and introduces a new way to shift that will virtually eliminate mistaking upshifts and downshifts. The shifters are powered by two CR2032 watch batteries, which are good for 2 years of use. Ergonomically shaped hoods sit comfortably in the hand and the levers are reach-adjustable to suit all hand sizes. Airea Utilising 128-bit encryption, eTap® shift signals are transmitted and received in accordance with SRAM’s proprietary wireless protocol known as AIREA. Each time an eTap groupset is paired, a new encryption code is generated and assigned to the components in this group to ensure complete shifting security eTAP All of the underlying technologies in the SRAM RED® eTap groupset such as wireless shifting, advanced battery power management and mechatronics technologies are all meant to serve one ultimate purpose, to facilitate the most intuitive and consistent shifting available. This shift logic is called eTap. The right lever makes it harder, the left lever makes it easier, press both levers to shift the front derailleur. Simple, unmistakable, and intuitive.