It's not exactly like a Q-tron etc, but it sure does a whole stack of interesting sounds. Pull some 70s-keys style tones from your guitar and get the whole street wondering exactly how many robotic ducks you're keeping as pets.

Model: Pigtronix Resotron Tracking Filter
Made: USA
Serial: 2901
Type: filter
Power Input: 18v DC centre-negative @ 300mA (supply not included)
Accessories: enormous original box

Condition notes: used, no major marks. Tested and fully functional.
Overall: excellent condition (9/10)