I purchased this about two years ago, but I never used it after opening the box. It includes the main unit, instruction manual, and cord. I threw away the box. There are some scratches on the surface (see photo 2). The cover of the instruction manual is dirty, but it can be read without any problems (see photo 3). I will ship via Mercari. UM2, a USB audio interface for DTM/DAW, equipped with a gain control knob. - Model Name: UM2 - Brand: behringer - Connection Type: USB - Output Terminals: Stereo output terminals - Input Terminals: Mic/Line input, Instrument input - Features: With gain control knob - Application: Audio interface for DTM/DAW Thank you for looking.