This is a vintage BOSS CE-1 chorus ensemble. Here's a description of this unit's condition: - All switches, knobs, and LEDs are functioning correctly. - The power cord has been replaced with a cord approximately 55cm long. - The chorus knob is damaged, and the top of the depth knob is missing. As this is a vintage item, there may be undiscovered operational issues. Please feel free to ask any questions, and I will do my best to check. Thank you. The following is a standard description: Chorus Ensemble with versatile control functions. - Model Name: Chorus Ensemble - Controls: chorus intensity, depth, vibrato, rate - Connections: Stereo Out - Power: AC100V - Condition: Shows signs of use - Power Cable: Included Thank you for looking.