Be it the fireworks of a finale, an ideal rhythm, climbing on the top, or a deep, dark place extracting the last kilojoule of effort on your bike split, you want to adjust your gear with the twitch of a finger. eTapBlip satellite shifters allow you to shift when you want, where you want. SRAM eTap Blips Features Limitless remote shifting positions for drop and aero bars Compatible with SRAM RED®eTap shift/brake controls SRAM eTap Blips Technology Airea-Utilizing 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.