RG1 Regenerator

Modulation Pedal

Six adjustable modes - chorus, M chorus, flanger, phaser, step phaser and V vibe.
Separate speed and depth controls to tailor your sound.
Robust, solid housing built for years of playing.
Regeneration’ control to adjust the effect intensity.
9v input with passive bypass.
Stereo output and expression input for live control.

https://marshall.com/marshall-amps/products/pedals/rg-1-regenerator