The Electro-Harmonix Doctor Q Nano Envelope Filter is a compact pedal that's not exactly small on the funk. The control layout is as simple as can be, with a single knob for range and a switchable bass boost when you need a little extra "oomph" to your tone. The envelope follower reacts dynamically to the volume of your picking, creating a wah-like tone that moves with how loud or soft you play individual notes or chords.

In Excellent Codnition. No noticeable marks or signs of wear.

Listing includes only what is shown in the photos.