Thank you for viewing. Please be sure to read to the end to prevent any trouble. This is a YAMAHA SU200 sampler. I have confirmed that the power turns on and sound is produced from the pads. The knobs and scratch controller also responded. The buttons also responded. The LCD is also in good condition. The only included item is the main unit. Please prepare your own YAMAHA adapter for power. I have not tested the battery operation. You can find the manual on the YAMAHA official website. I have not checked other detailed functions. Also, there are some minor scratches. Due to its age, please understand that this item is non-refundable and non-returnable.