The DigiTech XSW Synth Wah Envelope Filter Pedal doesn't leave you stranded with just one wah - it gives you 7 stellar sound types with tons of tweakability. Take control of vowel sounds and various wah types with the Synth Wah to provide rich variety to your leads. Precision control comes from Mix/Level, Range, Sensitivity, and Type knobs. Instrument and tuner outs. Includes 9V battery.