Carl Martin Chorus XII is two separate stereo chorus pedals in one stompbox with independent sets of controls for speed and depth. Each "chorus" has an LED, which flashes according to the speed setting. The "select" switch allows you to switch between the two chorus settings without having to get down on your knees to alter the controls. If an unbelievably rich, completely quiet and totally transparent chorus is what you're after, this is the unit for you. Has a built in regulated power supply.

3.5" wide x 4.5" deep x 2.25" high