Lightly gigged, no signs of damage

A fantastic Envelope Filter / Auto Wah for Guitar or Bass, does the funky reactive filter thing perfectly and when stacked with drive and an Octave Pedal perfect for replicating synth bass.

Might still have the box but not sure, if I find it I'll include it but assume sold without.

What Keeley say:

The Keeley Neutrino gives you all the classic, funk, auto-wah sounds and that Jerry-In-A-Box sound. We have used the classic opto-coupler design for a rich and warm depth to the effect. Envelope filter sound is an effect triggered by your pick attack or strength. The harder you pick, the harder it “wahs”! Sounds bubble up from a deep rounded warmth to a shinning brilliance. Solo notes are individually expressive based on how hard you play. Create incredible vowel sounds… Can you say “Let’s get it on”?!? Chord-work “stabs” sound right out of the disco dictionary, play that funky music white boy!