This is a self-made effector. It can be connected in stereo and is designed to control the volume of the signal. I am selling it due to equipment consolidation. It has been tested and is in working order, but it is a handmade item. Please refrain from purchasing if you are looking for a perfect finish or durability like a commercial product. There may be minor scratches on the exterior due to manufacturing and use. *No claims or returns, please. [Shipping] Shipping is included in the price.