Hydraulic Disc Brake Dual Control Lever
Like it's DURA-ACE sibling, the Ultegra R8070 Dual Control levers feature hidden buttons on top of the hoods. These buttons can be programmed to do anything.
Most riders seem to set them up to change pages on their head unit, or to change synchronized shifting mode. You need a wireless module in order to control your head unit or bike computer.
I wrote an article on setting up the buttons on your shifter hoods, so go ahead and read that if'd like to learn how to do that.
The R8070 shifters support hydraulic disc brakes and feature two e-tube ports, but no sprint shifter port. They weigh 180g each. Only the SW-R9150 sprint shifters will work, but they are a lot bulkier than the older (but incompatible) SW-R610 shifters.
Details & Specifications
E-Tube Port type:
Ultegra R8050 (Road)