Electro Harmonix Dr. Q Envelope Filter

Its intuitive control layout is dead simple. A single knob controls the range while a Bass toggle lets you give your signal a quick low-end boost for some added oomph. The Dr. Q Nano is very responsive to your picking dynamics and guitar volume; giving you different and unique sounds depending on how hard you attack the strings.

Features:

• Small die-cast case saves pedal board space
• Bass switch
• Range knob
• LED indicates when effect is on
• The effect responds to how hard you hit the string and where the guitar volume control is set