This is a modified MXR bass effects pedal by waxx, offering a wide range of sound creation possibilities. I purchased it on Mercari, but I preferred the original version, so I'm offering it to someone who might be interested. One point of concern is some crackling around the gain knob. Comes with the box and instruction manual. Please consider it. - Brand: MXR - Model: bass d.i. + - Effect Type: Distortion - Control Knobs: Bass, Mid, Treble, Gain, Output - Output Types: Direct Out, Parallel Out - LED Indicators: Power Indicator - Connections: Input, Output