Blackstar FS18 Footswitch for Acoustic:Core 30With the Blackstar FS18 2 button footswitch, quick and convenient access to your Acoustic: Core 30's onboard effects are at your feet. One stomp is all it takes to instantly engage the amp's Super Wide Stereo Reverb and Chorus effects, allowing you to add some extra texture and depth to your playing on the fly. Features 2 button footswitch for use with Blackstar Acoustic: Core 30 amps Instant access to the amp's onboard Super Wide Stereo Reverb and