Take total command and control of your sound like never before. The new Decibel Eleven Switch Dr.™ (originally introduced as Switch Witch) is a versatile and simple to program master controller that combines fully programmable MIDI control, true-bypass audio effects loops, and amp channel switching capabilities. The compact yet powerful Switch Dr. design is easy to use and meets all of your most basic needs – from sending a single program change to controlling an entire rig.