This is a digital mixer for professionals. I believe the list price was quite high (hundreds of thousands of yen, I think). The volume controls are illuminated for good visibility in dark places. There is some damage to the top surface. I purchased this at auction for use at game events, and have stored it since. Please prepare a general-purpose AC cable. Since I have no environment to test its operation, I'm selling it as junk. *Due to a sudden work commitment, shipping will likely be after Friday. I apologize for the inconvenience.*