As shown in the photos, this is a set of BEHRINGER POWERPLAY P16-I and P16-M. As a bonus, I'm including a Buffalo Cat6 LAN cable, probably about 5 meters long, and an audio technica AT-OPX1 5-meter optical cable. All items show some signs of use, but they are still usable. In particular, the 16-M has experienced hydrolysis on the button surfaces, making them a bit sticky. I rubbed them with an eraser to remove the stickiness, but the shine is gone. Musicians in my studio have used this in this condition many times, and I've never had any complaints. I believe there are no issues with its use. Everything in the photos is included. There are no other accessories. Please understand that this is a used item in its current condition, with no known operational problems.