Guitar effect pedal - polyphonic pitch shifting synthesizer, real-time pitch shifting with digital oscillators, improved circuitry for lower noise and enhanced performance, higher output for improved signal-to-noise ratio, suitable for guitars, bass, vocals, keyboards and more, true bypass, controls for pitch, primary, secondary, tracking, magic and tone, silent relay-based soft touch switching, input jack for expression pedal, 6.3 mm mono IN/OUT jacks, full analog dry bypass, 2 status LEDs, metal housing, power supply optional 9V DC adapter 2.1 mm x 5.5 mm barrel plug (not included), polarity (-) center, battery operation not supported, dimensions (D x W x H) 117 x 92 x 57 mm