The Blackstar FS-11 Footswitch provides users with increased control over their Blackstar ID:Core Stereo 20, 40 and BEAM amplifiers. The FS-11 features two modes of operation, including Alternative and Manual, offering good versatility. In Alternative mode, switch 1 can be used to toggle between two selected patches, while switch 2 turns patch effects on and off. In Manual mode, both switches can be used to scroll up and down through the user's presets, ensuring they can find their ideal patch quickly and easily. The Blackstar FS-11 is built to the highest standards, with its rugged metal design offering good durability for any application.