This is a tape echo unit that uses 8-track tapes. I have confirmed that it works without any particular problems, but please consider it with the understanding that it is old and may require maintenance. Two 8-track tapes will be included. As it is vintage equipment, there are aspects that are difficult to handle, but the sound of the analog tape slapback delay is wonderful. How about the real analog sound for recording or important live performances? Thank you. - Model: kastam ECHO CHAMBER SS-102 - Input Terminals: MIC/LINE x2 - Adjustment Knobs: BASS, TREBLE, ECHO, REPEAT, SPEED - Output Terminals: FROM PA - Power Supply: AC Power Thank you for viewing.