SRAM Red eTap Blip Dummy Plug Shifter/Blip Box, Pair LD4570

BlipBox is the control module that turns your triathlon or time trial bike into a sleek machine. Connected to SRAM eTap Blip remote shifters, the BlipBox manages the wireless shifting via AIREA, SRAM's proprietary communication protocol, allowing immediate shifts from nearly any aero position.