With both auto and manual modes! The V863-CA redefines the wah pedal experience, combining classic manual wah functionality with auto-wah modes. In Envelope Generator and Envelope Follower modes, your playing dynamics shape the wah in real time - and if you want to take over with manual control, just move the treadle and the pedal will automatically switch to follow your movement. All this while staying true to the iconic VOX wah tone that has defined generations of players. • MFSKU V863CA • UPC 4959112237537