This is a multi-effects unit from T.C. Electronic specializing in modulation effects. It can simultaneously use up to two effects from the following: chorus, vibrato, phaser, flanger, and tremolo. You can also save the settings for these in 9 banks. It also allows you to adjust the speed with tap tempo. This is a modulation effects unit that, as you would expect from T.C. Electronic, produces beautiful-sounding effects. I purchased it used, but I'm selling it because I haven't used it much. The exterior has some scratches. There are no particular issues with the operation. There may be other oversights, but please understand that this is a used item and I am selling it as-is, with no returns. Dual modulation effects, L/R input/output, and various effect functions are included. - Brand: t.c. electronic - Model: Nova Modulator - Effect Type: Dual Modulation Effect - Input/Output: L/R Input, L/R Output (Mono) - Controls: depth, speed, LFO sync, time/filter, shape/feed, tap tempo - Functions: chorus, flanger, phaser, vibrato - Power: DC 9V Thank you for looking. #tcelecronic #nova modulator #spatial effects