Switch between the inputs of your Radial Firefly with the Radial JR2 footswitch. Switch between two different instruments coming from the same DI. This is perfect for musicians doing double duty on stage. Have your acoustic guitar in Channel A and your mandolin in Channel B and switch between them seamlessly on stage. No more flipping switches by hand! You can also mute the Firefly from the JR2 footswitch. When it is muted the Firefly routes the instrument signal to a tuner output. Take complete control of your Firefly DI onstage with the Radial JR2 footswitch.