ZOOM R16 Has a certain degree of use. Accessories include the outer box, manuals, drivers, Cubase, USB cable, adapter, and a 1GB SD card. I have confirmed that the unit powers on, instruments can be connected, and the input signal is output from the headphone out. This slim and compact body, only 52mm thick, integrates three functions: a multi-track recorder, an audio interface, and a control surface. You can record with the MTR and perform overdubbing and mixing in a DAW, allowing for seamless music production. Key Features: ・8-track simultaneous recording, 16-track simultaneous playback ・8-in/2-out audio interface ・Control surface compatible with major DAW software ・8 XLR/TRS phone inputs ・Phantom power can be supplied simultaneously for up to 2 channels ・Hi-Z input for direct connection of guitar/bass ・Built-in high-sensitivity stereo microphone ・135 types of DSP effects, including guitar amp modeling ・Tuner & metronome function ・Supports large-capacity SDHC cards up to 32GB ・High-quality 24-bit WAV format recording ・Direct locate function to support editing work ・USB 2.0 Hi-Speed for fast file transfer ・Supports AC adapter/batteries/USB bus power ・Can be synchronized with another R16/R24 for 16-track simultaneous recording ・Can connect a USB memory to back up songs ・Includes Steinberg's DAW software 'Cubase LE (download version)'