Ultra-compact Single-button Footswitch The Orange FS-1 Mini footswitch is a smaller version of the original FS-1. This ruggedly built, simple-to-use, ultra-compact footswitch is compatible with the Dual Terror, AD30, Rocker 30, OR50, Rockerverb 50 and 100, Thunderverb 50 and 200, and TH series amplifiers. Guitarists here at GearNuts love this new mini version of an already great footswitch.Orange FS-1 Mini Footswitch Features: Ruggedly built, simple-to-use, ultra-compact footswitch Compatible with the Dual Terror, AD30, Rocker 30, OR50, Rockerverb 50 and 100, Thunderverb 50 and 200, and TH series amplifiers