This is a COLUMBIA GMX-3 portable DJ mixer made by Nippon Columbia. A reproduction version has been released by ANABAS, but this is the original from the 90s. ▫️Contents: Main unit only ▫️Operation confirmed ・Power on confirmed with AC power ・LINE-1 / LINE-2 input sound output OK ・Built-in speaker sound output OK ・Cross fader / LINE fader operates normally ・LINE OUT operation confirmed ▫️ Due to its age, there are stains, scratches, and discoloration. Thank you for viewing.