Features:
Uses the highest quality parts available with a discrete FET design and low impedance output.
Provides up to +20dB of pure boost, and let the tone have a more stereoscopic flare of high and low frequency, and do not produce auditory fatigue.
Internal DIP switches allows you to select the boost frequency and equalization settings.
Use true mechanical True Bypass switching.
3.5*1.5*1.2 mini size with blue indicator and transparent rotary knob.
Suitable for guitar, bass and other electroacoustic musical instrument.