Orange Amplifiers FS-2 2-Button Dual Guitar FootswitchThe FS 2 two button footswitch from Orange gives you more control over these Orange amps: Rockerverb Series: RK50H MKII RK100H MKII RK100H MKII DIVO RK50C MKII 112 RK50C MKII 212 Thunderverb Series: TH50H TH200H Condition: Good, there are some scratches, all minor. Does the job! Technically the foot switch should work with other amps that need dual foot switch functionality.