This is a very famous and easy-to-use, simple effector. As you can see in the image, there are paint chips on the body, as if plugs or other effectors have hit it, so I've marked the overall condition as poor, but it functions stably. The knobs have no scratchiness. Velcro from MXR is attached to the back. - Brand: MXR - Model Name: micro amp - Adjustment Knob: GAIN - Output Terminals: OUTPUT - Input Terminals: INPUT - LED Indicator: Red LED - Switch: Footswitch Smoke-free and no pets. Thank you for looking.