Blip Box for Blip buttons on Sram's AXS eTap system.

The Blip buttons are connected to this box, which can then send the signal on, somewhat as you know it from Shimano's DI2 junction box.

Also used for Sram AXS TT shifters.

Can be used with 4 handles.

Can send signal to both front derailleur and rear derailleur, as well as app setup.