Stereo output compatible Choralflange effect pedal, with adjustable Mix, Delay Time, Depth, and Rate. - Model Name: Choralflange - Brand: Fulltone Musical Products Inc. - Output Type: Stereo Output - Controls: Mix, Delay Time, Depth, Rate - Power: 9V DC This is a guitar effect pedal that was at my parents' house. Operation has been confirmed. As shown in the photos, there are some scratches from use, but it is generally in good condition. Due to the small number of digits in the serial number, and the fact that it is now a hard-to-find product, I have set the price accordingly. I am very sorry, but I can answer questions about the appearance, but I do not know about the sound or how it feels to use, so I would appreciate it if only those who understand this would purchase it. This is something my family cherished, so I would like to pass it on to someone who will continue to use it. I will pack it carefully and ship it. #MintAmp I have other items for sale, so please take a look if you like!