via this eBay listing
"This unit includes the original-style external synth interface/power supply unit and connecting cable, allowing the keytar to operate as intended.
The Moog Liberation is known for its rich analog sound, featuring dual oscillators, a classic Moog low-pass filter with resonance, and expressive real-time performance controls built into the neck grip.
Features:
Moog Liberation Analog Keytar Synthesizer
Dual Oscillator Analog Architecture
Classic Moog Low-Pass Filter with Resonance
Ribbon-Style Pitch Bend Control
Onboard Modulation, Filter, and Volume Controls
Designed for Stage Performance and Mobility
External Interface System for Power and Audio
Included:
Moog Liberation Keytar Unit
External Synth Interface / Power Supply
Connection Cable (approx. 20-foot style cable)
Condition:
Unit is fully functional and shows cosmetic wear consistent with age and normal use. Overall it remains in very good vintage condition."


























