A knob and a switch
a manual of 640 pages in French ... (kidding)
we choose the depth and turning the rate of speed.
Attention position equal rate speed is not the same depending on the switch
There's no denying it from analog warm!
1 year of use with a Gretsch Baritone
I love playing arpeggio,
for the funky rhythm I'm less a fan but hey it happens when even
loss of volume when the effect is switched
good value for money