The BOSS DS-2 Turbo Distortion with remote jack features twin Turbo modes. Mode One produces warm and mellow distortion with flat frequency response. Mode Two provides a biting distortion with a midrange boost that's great for leads. The built-in remote jack on the BOSS DS-2 Turbo pedal allows you to connect to an external footswitch such as the FS-5L for instant, hands-free mode switches.