This is a set of a Roland KD-7 and a TAMA CAMCO. I have confirmed that sound can be produced when connected to a TD-1. There are no major scratches or stains, but it is old, so it has a corresponding amount of wear and tear. The Roland KD-7 is a high-performance kick pad for electronic drums, equipped with an output terminal and a mixing terminal. - Model: KD-7 - Output Terminal: OUTPUT - Mixing Terminal: MIX IN - Polarity Setting: POLARITY - Color: Black Thank you for looking.