An effects unit that achieves a variety of tones. - Model Name: IR-2 - Output Terminals: OUTPUT A, OUTPUT B - Input Terminals: INPUT - Control Knobs: AMBIENCE, LEVEL, CLEAN, BASS, MIDDLE, TREBLE - Connection Terminals: SEND, RETURN I bought this new, but I've only used it for about a month, and I still have the box. There are no scratches anywhere. I hope this effects unit will find its way to someone who will use it more.