Guitar pedal effect - reverb. Experience studio-quality tone in a pedal that can be used with instruments of all stripes. The Immerse Mk II is packed with eight versatile reverb effects, including the new W3T and Sustain effect. Effects: W3T (Wet version 3), Plate, Hall, Spring, Sustain, Echo, Detune, Shimmer. Five controls: Effect select, Mix, Reverb Depth, Tone / Echo Time / Hold Time, Pre-Delay / Modulation / Blend.