In excellent condition, except for the missing battery cover.
Requires an 18v DC or 12-20v AC adapter (with standard Boss-style, 2.1mm plug), or 2x9v batteries (adapter and batteries not included).
The "Width Shift" switch doubles the delay time, and is basically a Flanger/Chorus switch.
Reticon SAD1024 BBD.
Carefully tested and perfectly working.
Worldwide shipping.