Roland US-20 - Floor Pedal Unit Selector
The US-20 from Roland is a floor pedal unit that allows a guitar that's equipped with GK-2AH to control and switch between two GR-compatible devices, such as guitar synthesizers. The unit features one GK-2AH input and two C-13 cable outputs. It also has two foot pedals for switching or combining the connected GR devices. It has a durable metal housing to withstand life on the road.