The BOSS Chorus Ensemble CE-5 is an effects pedal that provides a rich chorus effect. I purchased it about 30 years ago and it has been stored at home for a while. I haven't confirmed its operation. - Model Name: Chorus Ensemble CE-5 - Brand: BOSS - Output Type: OUTPUT A (MONO), OUTPUT B - Number of Adjustment Knobs: 3 - Battery Compartment: Yes - Connection Terminals: 1/4 inch jack I look forward to your purchase if you understand the above. There are no smokers or pets.